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Commits (4)
 \renewcommand{\lastedityear}{2019} \renewcommand{\lasteditmonth}{05} \renewcommand{\lasteditday}{01} \renewcommand{\lasteditday}{10} \renewcommand{\numberofthischapter}{4} \renewcommand{\titleofthischapter}{\namechapterfour} ... ... @@ -25,7 +25,7 @@ %%%% \subsection{Magnitude of the pressure force} \youtubethumb{ke4Rf9FrHnw}{when pressure-induced forces in static fluids matter: 24 hours of heavy tonnage transit through the \textit{Miraflores} locks in Panama. Can you quantify the force applying on a single lock door?}{Y:XyliboxFrance (\styl)} What is the force which which a fluid pushes against a wall? What is the force with which a fluid pushes against a wall? When the pressure $p$ exerted is uniform and the wall is flat, the resulting force $F$ is easily calculated: \begin{IEEEeqnarray}{rCcCl} ... ... @@ -111,7 +111,7 @@ \subsection{The direction of pressure} An important concept is that in continuum mechanics, the flat surface is imaginary. More precisely, a fluid is able to exert pressure on not only on solid surfaces, but also upon and within itself. In this context, we need to rework eq.~\ref{eq_first_def_pressure_two} so that now pressure is defined as perpendicular force per area on an \emph{infinitesimally small} surface of fluid: An important concept is that in continuum mechanics, the flat surface is imaginary. More precisely, a fluid is able to exert pressure not only on solid surfaces, but also upon and within itself. In this context, we need to rework eq.~\ref{eq_first_def_pressure_two} so that now pressure is defined as perpendicular force per area on an \emph{infinitesimally small} surface of fluid: \begin{IEEEeqnarray}{rCl} p &\equiv& \lim_{A \to 0} \frac{F_\perp}{A} \label{eq_def_pressure} \end{IEEEeqnarray} ... ...
 \renewcommand{\lastedityear}{2019} \renewcommand{\lasteditmonth}{03} \renewcommand{\lasteditday}{31} \renewcommand{\lasteditmonth}{05} \renewcommand{\lasteditday}{10} \renewcommand{\numberofthischapter}{5} \renewcommand{\titleofthischapter}{\namechapterfive} ... ... @@ -35,20 +35,21 @@ When the shear $\tau$ exerted by the fluid is not uniform (for example, because more friction is occurring on some parts of the surface than on others), the situation is more complex: the force must be obtained by integration. The surface is split in infinitesimal portions of area $\diff S$, and the corresponding forces are summed up as: \begin{IEEEeqnarray}{rCcCl} F_\text{{shear, direction } i} & = & \int_S \diff F_{\text{shear, direction } i} & = & \int_S \tau_{\text{direction } i} \diff S \label{eq_shear_force_scalar} F_{\text{shear, direction } i} & = & \int_S \diff F_{\text{shear, direction } i} & = & \int_S \tau_{\text{direction } i} \diff S \label{eq_shear_force_scalar} \end{IEEEeqnarray} \begin{equationterms} \item for a flat surface, \item where the $S$-integral denotes an integration over the entire surface. \end{equationterms} What is required to calculate the scalar $F$ in eq.~\ref{eq_shear_force_scalar} is an expression of~$\tau$ as a function of~$S$. In a simple laminar flow, this expression will often be relatively easy to find, as we see later on. Typically, in two dimensions $x$ and $y$ we re-write $\diff S$ as $\diff S = \diff x \diff y$ and we may then proceed with the calculation starting from What is required to calculate the scalar $F$ in eq.~\ref{eq_shear_force_scalar} is an expression of~$\tau$ as a function of~$S$. In a simple laminar flow, this expression will often be relatively easy to find, as we see later on. Typically, in two dimensions $x$ and $y$ we re-write $\tdiff S$ as $\tdiff S = \diff x \diff y$ and we may then proceed with the calculation starting from \begin{mdframed} \begin{IEEEeqnarray}{rCcCl} F_\text{{shear, direction } i} & = & \iint \tau_{\text{direction } i (x, y)} \diff x \diff y \label{eq_shear_force_twod_integration} \end{IEEEeqnarray} \end{mdframed} %%%% \subsection{Direction and position of the shear force} The above equations work only for a flat surface, and in a chosen direction $i$. When we consider a two- or three-dimensional object immersed in a fluid with non-uniform shear, the integration must be carried out with vectors. We will not attempt this in this course, but the expression is worth writing out in order to understand how computational fluid dynamics (\cfd) software will proceed with the calculation. ... ... @@ -144,13 +145,13 @@ \end{IEEEeqnarray} Given that $S_3 = S_6 = \diff x \diff y$, that $S_2 = S_5 = \diff x \diff z$ and that $S_1 = S_4 = \diff z \diff y$, this is re-written as: \begin{IEEEeqnarray}{rCl} \vec F_{\text{shear}\ x} &=& \diff x \diff y (\vec \tau_{zx\ 3} - \vec \tau_{zx\ 6})\nonumber\\ && + \diff x \diff z (\vec \tau_{yx\ 2} - \vec \tau_{yx\ 5})\nonumber\\ && + \diff z \diff y (\vec \tau_{xx\ 1} - \vec \tau_{xx\ 4})\label{eq_fshear_xdir} \vec F_{\text{shear}\ x} &=& \diff x \diff y \ (\vec \tau_{zx\ 3} - \vec \tau_{zx\ 6})\nonumber\\ && + \diff x \diff z \ (\vec \tau_{yx\ 2} - \vec \tau_{yx\ 5})\nonumber\\ && + \diff z \diff y \ (\vec \tau_{xx\ 1} - \vec \tau_{xx\ 4})\label{eq_fshear_xdir} \end{IEEEeqnarray} In the same way we did with pressure in \chapterfourshort (\S\ref{ch_pressure_and_depth} p.\pageref{ch_pressure_and_depth}), we express each pair of values as derivative with respect to space multiplied by an infinitesimal distance: \begin{IEEEeqnarray}{rCl} \vec F_{\text{shear}\ x} &=& \diff x \diff y \left(\diff z \partialderivative{\vec \tau_{zx}}{z}\right) + \diff x \diff z \left(\diff y \partialderivative{\vec \tau_{yx}}{y}\right) + \diff z \diff y \left(\diff x \partialderivative{\vec \tau_{xx}}{x}\right)\nonumber\\ \vec F_{\text{shear}\ x} &=& \diff x \diff y \left(\tdiff z \partialderivative{\vec \tau_{zx}}{z}\right) + \diff x \diff z \left(\tdiff y \partialderivative{\vec \tau_{yx}}{y}\right) + \diff z \diff y \left(\tdiff x \partialderivative{\vec \tau_{xx}}{x}\right)\nonumber\\ &=& \diff \vol \left(\partialderivative{\vec \tau_{zx}}{z} + \partialderivative{\vec \tau_{yx}}{y} + \partialderivative{\vec \tau_{xx}}{x}\right)\label{eq_shear_force_x_tmp} \end{IEEEeqnarray} ... ...
 \renewcommand{\lastedityear}{2019} \renewcommand{\lasteditmonth}{03} \renewcommand{\lasteditday}{31} \renewcommand{\lasteditmonth}{05} \renewcommand{\lasteditday}{10} \renewcommand{\numberofthischapter}{6} \renewcommand{\titleofthischapter}{\namechaptersix} ... ... @@ -17,8 +17,8 @@ Let us start with the unfortunate truth: not only are the methods developed here are incredibly complex, but they are also very ineffective to solve fluid flow problems with a pen and paper. Despite this, this chapter is extraordinarily important, for two reasons: \begin{itemize} \item derivative analysis allows us to formally \emph{describe} and \emph{relate} the key parameters that regulate fluid flow, and so is the key to developing an understanding of any fluid phenomenon, even when solutions cannot be derived; \item it is the backbone for \vocab{computational fluid dynamics} (\textsc{cfd}) in which approximate flow solutions are obtained using numerical procedures. \item derivative analysis allows us to formally \emph{describe} and \emph{relate} the key parameters that regulate fluid flow, and so, it is the key to developing an understanding of any fluid phenomenon, even when solutions cannot be derived; \item it is the backbone for \vocab{computational fluid dynamics} (\textsc{cfd}) in which flow solutions are obtained using numerical procedures, in every problem of interest in research and industry today. \end{itemize} ... ... @@ -187,7 +187,7 @@ This equation~\ref{eq_continuity_der} is named \vocab{continuity equation} and is of crucial importance in fluid mechanics. It sums up two terms: \begin{itemize} \item The first term on the left, $\inlinepartialtimederivative{\rho}$, is the local time-change of density. When the fluid “contracts”, density increases and the term becomes positive. In an incompressible flow, it is always zero. \item The second term is the divergent of density times velocity, $\divergent{\rho\vec V} = \inlinepartialderivative{\rho u}{x} + \inlinepartialderivative{\rho v} + \inlinepartialderivative{\rho w}{z}$. It sums up the changes in space of the mass fluxes $\rho V_i$. For example, if a particle in a static fluid is heated up suddenly, it will expand and the divergent of $\rho \vec V$ will have positive value. \item The second term is the divergent of density times velocity, $\divergent{\rho\vec V} = \inlinepartialderivative{\rho u}{x} + \inlinepartialderivative{\rho v}{y} + \inlinepartialderivative{\rho w}{z}$. It sums up the changes in space of the mass fluxes $\rho V_i$. For example, if a particle in a static fluid is heated up suddenly, it will expand and the divergent of $\rho \vec V$ will have positive value. \end{itemize} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ... ... @@ -238,7 +238,7 @@ \item for all flows, with all fluids. \end{equationterms} The Cauchy equation is an expression of Newton’s second law applied to a fluid particle. It expresses the time change of the velocity vector measured at a fixed point (the acceleration field $\text{D}\vec V/\text{D}t$) as a function of gravity, pressure and shear effects. This is quite a breakthrough. Within the chaos of an arbitrary flow, in which fluid particles are shoved, pressurized, squeezed, and distorted, we know precisely what we need to look for in order to quantify the time-change of velocity: gravity, the gradient of pressure, and the divergent of shear. The Cauchy equation is a formulation of Newton’s second law applied to a fluid particle. It expresses the time change of the velocity vector measured at a fixed point (the acceleration field $\text{D}\vec V/\text{D}t$) as a function of gravity, pressure and shear effects. This is quite a breakthrough. Within the chaos of an arbitrary flow, in which fluid particles are shoved, pressurized, squeezed, and distorted, we know precisely what we need to look for in order to quantify the time-change of velocity: gravity, the gradient of pressure, and the divergent of shear. Nevertheless, while it is an excellent start, this equation isn’t detailed enough for us. In our search for the velocity field $\vec V$, the changes in time and space of the shear tensor $\vec \tau_{ij}$ and pressure $p$ are unknowns. Ideally, those two terms should be expressed solely as a function of the flow’s other properties. Obtaining such an expression is what \we{Claude-Louis Navier} and \we{Gabriel Stokes} set themselves to in the 19\up{th} century: we follow their footsteps in the next paragraphs. ... ... @@ -246,14 +246,14 @@ %\subsection{Balance of linear momentum for Newtonian fluids: the Navier-Stokes equation} \label{ch_navier-stokes} The Navier-Stokes equation is the Cauchy equation (eq.~\ref{eq_cauchy}) applied to Newtonian fluids. In Newtonian fluids, which we encountered in chapter~2 (\S\ref{ch_newtonian_fluid} p.\pageref{ch_newtonian_fluid}), shear efforts are simply proportional to the rate of strain; thus, the shear component of eq.~\ref{eq_cauchy} can be re-expressed usefully. The Navier-Stokes equation is the Cauchy equation (eq.~\ref{eq_cauchy}) applied to Newtonian fluids. In Newtonian fluids, which we encountered in \chapterfiveshort (\S\ref{ch_newtonian_fluid} p.\pageref{ch_newtonian_fluid}), shear efforts are simply proportional to the rate of strain; thus, the shear component of eq.~\ref{eq_cauchy} can be re-expressed usefully. We had seen with eq.~\ref{eq_shear_velocity_gradient} p.\pageref{eq_shear_velocity_gradient} that the norm $||\vec \tau_{ij}||$ of shear component in direction~$j$ along a surface perpendicular to~$i$ depended on the viscosity and the velocity: \begin{IEEEeqnarray*}{rCcCl} ||\vec \tau_{ij}|| &=& \mu \partialderivative{u_j}{i} \label{eq_shear_velocity_gradient_two} \end{IEEEeqnarray*} This is a one-dimensional (scalar) equation. Unfortunately, it does not translate easily into three dimensions. The required vector algebra far exceeds our level for this course, and we are interested only in the result (the derivation of equation in Cartesian coordinates is covered in Anderson~\cite{anderson1995} and Versteeg \& Malalasekra \cite{versteegetal2007}, and the vector form can be found in Batchelor~\cite{batchelor1967}). We obtain the heavy-handed result, in the form of a three-dimensional vector: This is a one-dimensional (scalar) equation. Unfortunately, it does not translate easily into three dimensions. The required vector algebra far exceeds our level for this course, and we are interested only in the result (the derivation of this equation in Cartesian coordinates is covered in Anderson~\cite{anderson1995} and Versteeg \& Malalasekra \cite{versteegetal2007}, and the vector form can be found in Batchelor~\cite{batchelor1967}). We obtain the heavy-handed result, in the form of a (three-dimensional) vector field: \begin{IEEEeqnarray}{rCl} \divergent{\vec \tau_{ij}} &=& \mu \laplacian{\vec V} + \frac{1}{3}\mu \gradient{\left(\divergent{\vec V}\right)} \end{IEEEeqnarray} ... ... @@ -311,6 +311,9 @@ \begin{IEEEeqnarray}{rCl} q_i &=& -\kappa \partialderivative{T}{i} \label{eq_fourier} \end{IEEEeqnarray} \begin{equationterms} \item where $\kappa$ is the \we{conductivity} of the fluid (\si{\watt\per\metre\per\kelvin}). \end{equationterms} so that now we may write the heat transfer due to conduction as \begin{IEEEeqnarray}{rCl} \dot Q_{\text{conduction}} &=& \dot Q_{\text{conduction},x} + \dot Q_{\text{conduction},y} + \dot Q_{\text{conduction},z}\nonumber\\ ... ... @@ -323,7 +326,7 @@ A &=& \rho \totaltimederivative{}\left(i + \frac{1}{2} V^2\right) \diff \vol \end{IEEEeqnarray} We are therefore able quantify the change of energy of fluid particle as follows: We are therefore able quantify the change of energy of fluid particle with a scalar field equation as follows: \begin{mdframed} \begin{IEEEeqnarray}{rCl} \rho \totaltimederivative{}\left(i + \frac{1}{2} V^2\right) &=& \rho \dot q_\text{radiation} + \kappa \left[ \secondpartialderivative{T}{x} + \secondpartialderivative{T}{y} + \secondpartialderivative{T}{z}\right]\nonumber\\ ... ... @@ -331,9 +334,6 @@ \end{IEEEeqnarray} \end{mdframed} %This equation has several shortcomings, most importantly because the term $\dot q_\text{radiation}$ is not expressed in terms of fluid properties, and because $\mu$ is typically not independent of the temperature $T$. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \subsection{Other terms and equations} ... ... @@ -343,7 +343,7 @@ \begin{itemize} \item In a description of an ocean flow, a \we{tidal force} may be added; \item In a description of a large atmospheric flow, a \we{Coriolis force} may be added; \item In a description of sap flow in a plant, forces related to \we{surface tension} may be added. \item In a description of sap flow in a tree or plant, forces related to \we{surface tension} may be added. \end{itemize} Additionally, modeling some more advanced fluid phenomena requires altogether new equations, for example: ... ... @@ -377,7 +377,7 @@ To write a balance of mass for incompressible flow, we begin where we left off with the general mass balance (eq.~\ref{eq_continuity_der} p.\pageref{eq_continuity_der}), which we re-write here: \begin{IEEEeqnarray*}{rCl} \partialtimederivative{\rho} + \divergent{(\rho \vec V)} &=& 0 \label{eq_continuity_der} \partialtimederivative{\rho} + \divergent{(\rho \vec V)} &=& 0 \end{IEEEeqnarray*} In this equation, we see that if $\rho$ is uniform and constant, the first term will vanish. Once this happens, $\rho$ can be simply dropped from the second term. This leaves us with the (much simpler) \vocab{mass balance equation for incompressible flow}:\pagebreak%handmade ... ... @@ -453,7 +453,7 @@ \divergent{\vec \tau_{ij}} &=& \mu \laplacian{\vec V} \label{shear_tensor_velocity} \end{IEEEeqnarray} With this new expression, we can come back to the Cauchy equation (eq.~\ref{eq_cauchy}), in which we can replace the shear term with eq.~\ref{shear_tensor_velocity}. This produces the beautifulwe co \vocab{Navier-Stokes equation for incompressible flow}: With this new expression, we can come back to the Cauchy equation (eq.~\ref{eq_cauchy}), in which we can replace the shear term with eq.~\ref{shear_tensor_velocity}. This produces the beautiful \vocab{Navier-Stokes equation for incompressible flow}: \begin{mdframed} \begin{IEEEeqnarray}{rCl} \rho \totaltimederivative{\vec V} & = & \rho \vec g - \gradient{p} + \mu \laplacian{\vec V} \label{eq_navierstokes} ... ... @@ -477,7 +477,7 @@ Today indeed, 150 years after it was first written, no general expression has been found for velocity or pressure fields that would solve this vector equation in the general case. Nevertheless, in this course we will use it directly: \begin{itemize} \item to understand and quantify the importance of key fluid flow parameters, in \chapterten; \item to understand and quantify the importance of key fluid flow parameters, in \chapternine; \item to find analytical solutions to flows in a few selected cases, in the other remaining chapters. \end{itemize} ... ... @@ -486,7 +486,7 @@ \subsection{The Bernoulli equation (again)} We had made clear in \chaptertwo that the Bernoulli equation was very limited in scope, and that it was always safer to approach a problem from the an energy equation instead (\S\ref{ch_bernoulli} p.\pageref{ch_bernoulli}). As a reminder of this fact, and as an illustration of the bridges that can be built between integral and derivative analysis, it can be instructive to derive the Bernoulli equation directly from the Navier-Stokes equation. This derivation is not difficult to follow; it is covered in Appendix~\ref{appendix_benoulli_navier_stokes} p.\pageref{appendix_benoulli_navier_stokes}. We had made clear in \chaptertwo that the Bernoulli equation was very limited in scope, and that it was always safer to approach a problem from an energy equation instead (\S\ref{ch_bernoulli} p.\pageref{ch_bernoulli}). As a reminder of this fact, and as an illustration of the bridges that can be built between integral and derivative analysis, it can be instructive to derive the Bernoulli equation directly from the Navier-Stokes equation. This derivation is not difficult to follow; it is covered in Appendix~\ref{appendix_benoulli_navier_stokes} p.\pageref{appendix_benoulli_navier_stokes}. ... ... @@ -496,7 +496,7 @@ %\subsection{Principle} In our analysis of fluid flow from a derivative perspective, our five physical principles from \S\ref{ch_conservation_equations} have been condensed into three equations (often loosely referred together to as the \textit{Navier-Stokes equations}). Out of these, the first two, for conservation of mass (\ref{eq_continuity_der_inc}) and linear momentum (\ref{eq_navierstokes}) in incompressible flows, are often enough to characterize most free flows, and should in principle be enough to find the primary unknown, which is the velocity field $\vec V$: In our analysis of fluid flow from a derivative perspective, our five physical principles from \S\ref{ch_conservation_equations} have been condensed into three balance equations (often loosely referred together to as \textit{the Navier-Stokes equations}). Out of these, the first two, for conservation of mass (\ref{eq_continuity_der_inc}) and linear momentum (\ref{eq_navierstokes}) in incompressible flows, are often enough to characterize most free flows, and should in principle be enough to find the primary unknown, which is the velocity field $\vec V$: \begin{IEEEeqnarray*}{rCl} 0 & = & \divergent{\vec V} \\ \rho \totaltimederivative{\vec V} & = & \rho \vec g - \gradient{p} + \mu \laplacian{\vec V} ... ...
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 This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2018.10.12) 1 MAY 2019 14:19 This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2018.10.12) 10 MAY 2019 10:10 entering extended mode restricted \write18 enabled. file:line:error style messages enabled. ... ... @@ -2992,16 +2992,9 @@ Package biblatex Warning: 'babel/polyglossia' detected but 'csquotes' missing. (./fluidmech.aux (./0/titlepage.aux) (./0/introduction.aux) (./1/chap1.aux) (./1/exercises1.aux) (./2/chap2.aux) (./2/exercises2.aux) (./3/chap3.aux) (./3/exercises3.aux) (./4/chap4.aux) (./4/exercises4.aux) (./5/chap5.aux) (./5/exercises5.aux) (./6/chap6.aux LaTeX Warning: Label eq_continuity_der' multiply defined. LaTeX Warning: Label eq_continuity_der@cref' multiply defined. ) (./6/exercises6.aux) (./7/chap7.aux) (./7/exercises7.aux) (./8/chap8_placeholder.aux) (./9/chap9.aux) (./9/exercises9.aux) (./10/chap10.aux) (./10/exercises10.aux) (./11/chap11.aux) (./5/exercises5.aux) (./6/chap6.aux) (./6/exercises6.aux) (./7/chap7.aux) (./7/exercises7.aux) (./8/chap8_placeholder.aux) (./9/chap9.aux) (./9/exercises9.aux) (./10/chap10.aux) (./10/exercises10.aux) (./11/chap11.aux) (./11/exercises11.aux) (./a/appendix.aux)) \openout1 = fluidmech.aux'. ... ... @@ -3609,7 +3602,7 @@ LaTeX Font Warning: Size substitutions with differences LaTeX Font Warning: Some font shapes were not available, defaults substituted. LaTeX Warning: There were multiply-defined labels. LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right. Package logreq Info: Writing requests to 'fluidmech.run.xml'. \openout1 = fluidmech.run.xml'. ... ... @@ -3618,7 +3611,7 @@ Package logreq Info: Writing requests to 'fluidmech.run.xml'. Here is how much of TeX's memory you used: 62600 strings out of 494214 1148350 string characters out of 6166503 1748200 words of memory out of 5000000 1748161 words of memory out of 5000000 64429 multiletter control sequences out of 15000+600000 762686 words of font info for 348 fonts, out of 8000000 for 9000 500 hyphenation exceptions out of 8191 ... ...
 This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2018.10.12) 1 MAY 2019 14:14 This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2018.10.12) 10 MAY 2019 10:05 entering extended mode restricted \write18 enabled. file:line:error style messages enabled. ... ... @@ -5422,151 +5422,151 @@ LaTeX Warning: Reference mdf@pagelabel-18' on page 86 undefined on input line LaTeX Warning: Reference eq_pressure_force_vector' on page 86 undefined on inp ut line 62. ut line 63. LaTeX Warning: Reference eq_shear_force_vector' on page 86 undefined on input line 62. line 63. LaTeX Warning: Reference ch_position_pressure_force' on page 86 undefined on i nput line 64. nput line 65. LaTeX Warning: Reference ch_position_pressure_force' on page 86 undefined on i nput line 64. nput line 65. LaTeX Warning: Reference chap_one' on page 1 undefined on input line 70. 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[89] File: shear_velocity_gradient.png Graphic file (type png) Package pdftex.def Info: shear_velocity_gradient.png used on input line 221. Package pdftex.def Info: shear_velocity_gradient.png used on input line 222. (pdftex.def) Requested size: 369.88586pt x 308.24713pt. Package mdframed Info: mdframed works in twoside mode on input line 233. Package mdframed Info: mdframed works in twoside mode on input line 234. LaTeX Warning: Reference mdf@pagelabel-20' on page 90 undefined on input line 240. 241. [90 <./5/images/shear_velocity_gradient.png>] LaTeX Warning: Reference fig_viscosities_various_fluids' on page 1 undefined o n input line 261. n input line 262. LaTeX Warning: Reference fig_viscosities_various_fluids' on page 91 undefined on input line 261. on input line 262. LaTeX Warning: Reference fig_viscosity_characteristics' on page 1 undefined on input line 263. input line 264. 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[92 <./5/images/couette_flow.png>]) \openout2 = 5/exercises5.aux'. ... ... @@ -5982,6 +5982,9 @@ LaTeX Warning: Reference eq_cauchytmp' on page 106 undefined on input line 233 LaTeX Warning: Reference eq_cauchy' on page 106 undefined on input line 249. LaTeX Warning: Reference chap_five' on page 1 undefined on input line 249. LaTeX Warning: Reference ch_newtonian_fluid' on page 106 undefined on input li ne 249. ... ... @@ -6034,11 +6037,11 @@ LaTeX Warning: Citation 'versteegetal2007' on page 107 undefined on input line 277. [107] Package mdframed Info: mdframed works in twoside mode on input line 328. Package mdframed Info: mdframed works in twoside mode on input line 331. LaTeX Warning: Reference mdf@pagelabel-25' on page 108 undefined on input line 332. 335. [108] ... ... @@ -6149,7 +6152,7 @@ LaTeX Warning: Reference eq_navierstokes' on page 111 undefined on input line [111] LaTeX Warning: Reference chap_ten' on page 1 undefined on input line 480. LaTeX Warning: Reference chap_nine' on page 1 undefined on input line 480. LaTeX Warning: Reference chap_two' on page 1 undefined on input line 489. ... ... @@ -6446,7 +6449,7 @@ LaTeX Warning: Citation 'munsonetal2013' on page 119 undefined on input line 10 LaTeX Warning: Citation 'denevers2004' on page 119 undefined on input line 10. <7Ba0vkAx6ds.jpg, id=1498, 803.0pt x 451.6875pt> <7Ba0vkAx6ds.jpg, id=1500, 803.0pt x 451.6875pt> File: 7Ba0vkAx6ds.jpg Graphic file (type jpg) Package pdftex.def Info: 7Ba0vkAx6ds.jpg used on input line 14. ... ... @@ -6455,7 +6458,7 @@ Package pdftex.def Info: 7Ba0vkAx6ds.jpg used on input line 14. LaTeX Warning: Reference fig_inviscid_flow_pipe' on page 119 undefined on inpu t line 24. File: fluid_flow_in_duct_inviscid.png Graphic file (type png) Package pdftex.def Info: fluid_flow_in_duct_inviscid.png used on input line 28 ... ... @@ -6510,7 +6513,7 @@ Excluding 'comment' comment. LaTeX Warning: Reference fig_viscous_laminar_flow_in_duct' on page 121 undefin ed on input line 116. File: fluid_flow_in_duct_viscous_laminar.png Graphic file (type png) Package pdftex.def Info: fluid_flow_in_duct_viscous_laminar.png used on input ... ... @@ -6547,7 +6550,7 @@ LaTeX Warning: Reference fig_twoplates' on page 1 undefined on input line 141. LaTeX Warning: Reference eq_tmp4' on page 123 undefined on input line 153. <23r18zOX30k.jpg, id=1560, 481.8pt x 361.35pt> <23r18zOX30k.jpg, id=1562, 481.8pt x 361.35pt> File: 23r18zOX30k.jpg Graphic file (type jpg) Package pdftex.def Info: 23r18zOX30k.jpg used on input line 158. ... ... @@ -6567,7 +6570,7 @@ LaTeX Warning: Reference eq_tmp5' on page 123 undefined on input line 159. LaTeX Warning: Reference fig_cylinder_lam' on page 1 undefined on input line 1 72. File: pipe_flow_coordinates.png Graphic file (type png) Package pdftex.def Info: pipe_flow_coordinates.png used on input line 176. ... ... @@ -6593,7 +6596,7 @@ LaTeX Warning: Reference eq_pipe_lam_tmp' on page 125 undefined on input line LaTeX Warning: Reference fig_speed_cylinder_lam' on page 1 undefined on input line 226. File: velocity_distribution_laminar_pipe.png Graphic file (type png) Package pdftex.def Info: velocity_distribution_laminar_pipe.png used on input ... ... @@ -6613,17 +6616,17 @@ LaTeX Warning: Reference eq_def_darcy' on page 125 undefined on input line 250 . [125 <./7/images/velocity_distribution_laminar_pipe.png>] <56AyTIhNQBo.jpg, id=1604, 803.0pt x 506.89375pt> <56AyTIhNQBo.jpg, id=1606, 803.0pt x 506.89375pt> File: 56AyTIhNQBo.jpg Graphic file (type jpg) Package pdftex.def Info: 56AyTIhNQBo.jpg used on input line 265. (pdftex.def) Requested size: 103.85237pt x 65.55045pt. 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LaTeX Warning: Reference mdf@pagelabel-30' on page 131 undefined on input line 24. File: viscosities_horizontal.jpg Graphic file (type jpg) Package pdftex.def Info: viscosities_horizontal.jpg used on input line 29. ... ... @@ -6797,7 +6800,7 @@ LaTeX Font Info: Font shape TS1/fxl/m/sl' will be LaTeX Warning: Citation 'white2008' on page 131 undefined on input line 32. File: moody_rotated.png Graphic file (type png) Package pdftex.def Info: moody_rotated.png used on input line 38. ... ... @@ -6840,7 +6843,7 @@ LaTeX Warning: Reference fig_viscosities_various_fluids' on page 133 undefined LaTeX Warning: Reference fig_water_piping' on page 1 undefined on input line 7 5. File: water_pipe_layout.png Graphic file (type png) Package pdftex.def Info: water_pipe_layout.png used on input line 79. ... ... @@ -6902,7 +6905,7 @@ ut line 138. LaTeX Warning: Reference fig_trans_alaska' on page 1 undefined on input line 1 38. 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File: boundary_layer_transition.png Graphic file (type png) Package pdftex.def Info: boundary_layer_transition.png used on input line 262. ... ... @@ -7706,7 +7709,7 @@ LaTeX Warning: Reference chap_seven' on page 1 undefined on input line 280. LaTeX Warning: Reference fig_comparaison_profils' on page 1 undefined on input line 295. File: boundary_layer_laminar_turbulent_comparison.png Graphic file (type png) ... ... @@ -7717,7 +7720,7 @@ on input line 299. LaTeX Warning: Reference fig_bl_sep' on page 1 undefined on input line 321. File: boundary_layer_separation.png Graphic file (type png) Package pdftex.def Info: boundary_layer_separation.png used on input line 325. ... ... @@ -7736,13 +7739,13 @@ LaTeX Warning: Reference eq_ns_bl_lam_un' on page 167 undefined on input line LaTeX Warning: Reference fig_bl_sep_inflection' on page 1 undefined on input l ine 343. 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File: plate_shear_calculations.png Graphic file (type png) Package pdftex.def Info: plate_shear_calculations.png used on input line 93. ... ... @@ -7921,7 +7924,7 @@ s-cos-ity $\LS1/libertinust1math/m/it/12 ^^V[] \LS1/libertinust1math/m/n/12 = [ LaTeX Warning: Reference fig_wright_flyer' on page 1 undefined on input line 1 11. File: Kitty_hawk_gross.jpg Graphic file (type jpg) Package pdftex.def Info: Kitty_hawk_gross.jpg used on input line 114. ... ... @@ -7946,7 +7949,7 @@ n input line 160. LaTeX Warning: Reference fig_laminar_profile_bertin_one' on page 1 undefined o n input line 160. File: bertin_laminar_profile_1.png Graphic file (type png) Package pdftex.def Info: bertin_laminar_profile_1.png used on input line 164. ... ... @@ -7955,7 +7958,7 @@ Package pdftex.def Info: bertin_laminar_profile_1.png used on input line 164. LaTeX Warning: Citation 'bertincummings2010' on page 174 undefined on input lin e 166. 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File: images/potential_flow_source.png Graphic file (type png) Package pdftex.def Info: images/potential_flow_source.png used on input line 1 ... ... @@ -8202,13 +8205,13 @@ Package pdftex.def Info: images/potential_flow_source.png used on input line 1 LaTeX Warning: Reference fig_potential_flow_doublet' on page 1 undefined on in put line 184. File: images/potential_flow_uniform_flow.png Graphic file (type png) Package pdftex.def Info: images/potential_flow_uniform_flow.png used on input line 194. (pdftex.def) Requested size: 50.99911pt x 85.35826pt. File: potential_flow_doublet.png Graphic file (type png) Package pdftex.def Info: potential_flow_doublet.png used on input line 195. ... ... @@ -8217,7 +8220,7 @@ Package pdftex.def Info: potential_flow_doublet.png used on input line 195. LaTeX Warning: Reference fig_potential_flow_cylinder' on page 1 undefined on i nput line 202. File: potential_flow_cylinder.png Graphic file (type png) Package pdftex.def Info: potential_flow_cylinder.png used on input line 208. ... ... @@ -8228,14 +8231,14 @@ doublet.png>] LaTeX Warning: Reference fig_pressure_distribution_cylinder' on page 1 undefin ed on input line 240. File: pressure_distribution_cylinders.png Graphic file (type png) Package pdftex.def Info: pressure_distribution_cylinders.png used on input lin e 243. (pdftex.def) Requested size: 221.93376pt x 169.98183pt. [185 <./11/images/potential_flow_cylinder.png>] File: oGeMZ3t8jn4.png Graphic file (type png) Package pdftex.def Info: oGeMZ3t8jn4.png used on input line 254. ... ... @@ -8263,7 +8266,7 @@ ine 255. LaTeX Warning: Reference fig_lifting_cylinder' on page 1 undefined on input li ne 266. File: rotating_cylinders_white.png Graphic file (type png) Package pdftex.def Info: rotating_cylinders_white.png used on input line 269. ... ... @@ -8277,7 +8280,7 @@ LaTeX Warning: Citation 'white2008' on page 186 undefined on input line 271. Excluding 'comment' comment. [186 <./11/images/pressure_distribution_cylinders. png> <./11/thumbs/oGeMZ3t8jn4.png (PNG copy)>] File: pnbJEg9r1o8.jpg Graphic file (type jpg) Package pdftex.def Info: pnbJEg9r1o8.jpg used on input line 296. ... ... @@ -8301,12 +8304,12 @@ Underfull \hbox (badness 6978) in paragraph at lines 296--296 LaTeX Warning: Reference fig_conformal_mapping' on page 1 undefined on input l ine 297. File: conformal_mapping_1.png Graphic file (type png) Package pdftex.def Info: conformal_mapping_1.png used on input line 300. (pdftex.def) Requested size: 295.9098pt x 69.12874pt. 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File: Velocity_relative_to_ground.png Graphic file (type png) Package pdftex.def Info: Velocity_relative_to_ground.png used on input line 32 3. (pdftex.def) Requested size: 147.95209pt x 147.95503pt. File: lift_distribution_2.png Graphic file (type png) Package pdftex.def Info: lift_distribution_2.png used on input line 331. (pdftex.def) Requested size: 369.88586pt x 165.07603pt. File: lift_distribution_3.png Graphic file (type png) Package pdftex.def Info: lift_distribution_3.png used on input line 332. (pdftex.def) Requested size: 369.88586pt x 158.86525pt. File: lift_distribution_4.png Graphic file (type png) Package pdftex.def Info: lift_distribution_4.png used on input line 333. ... ... @@ -8383,7 +8386,7 @@ LaTeX Warning: Reference eq_ns_nondim_two' on page 190 undefined on input line LaTeX Warning: Reference fig_microorganisms' on page 1 undefined on input line 368. File: EMpylori.jpg Graphic file (type jpg) Package pdftex.def Info: EMpylori.jpg used on input line 372. ... ... @@ -8410,7 +8413,7 @@ put line 384. [190 ] File: stokes_flow_sphere_streamlines.png Graphic file (type png) Package pdftex.def Info: stokes_flow_sphere_streamlines.png used on input line ... ... @@ -8496,7 +8499,7 @@ LaTeX Warning: Citation 'cengelcimbala2010' on page 193 undefined on input line LaTeX Warning: Reference fig_water_drops' on page 1 undefined on input line 41 . File: images/water_drops.png Graphic file (type png) Package pdftex.def Info: images/water_drops.png used on input line 49. ... ... @@ -8532,7 +8535,7 @@ l.65 \end{IEEEeqnarray} LaTeX Warning: Reference eq_utheta_cylinder_nolift' on page 194 undefined on i nput line 65. File: images/hangar.png Graphic file (type png) Package pdftex.def Info: images/hangar.png used on input line 77. ... ... @@ -8575,13 +8578,13 @@ LaTeX Warning: Citation 'munsonetal2013' on page 195 undefined on input line 10 LaTeX Warning: Reference fig_sphere_cylinder_drag' on page 195 undefined on in put line 105. File: images/cylinder_sphere_drag_munson_1.png Graphic file (type png) Package pdftex.def Info: images/cylinder_sphere_drag_munson_1.png used on inpu t line 113. (pdftex.def) Requested size: 426.79135pt x 224.06009pt. File: images/cylinder_sphere_drag_munson_2.png Graphic file (type png) Package pdftex.def Info: images/cylinder_sphere_drag_munson_2.png used on inpu ... ... @@ -8609,7 +8612,7 @@ LaTeX Warning: Citation 'munsonetal2013' on page 197 undefined on input line 12 LaTeX Warning: Reference fig_sphere_lift' on page 1 undefined on input line 12 5. File: images/rotating_sphere_munson.png Graphic file (type png) Package pdftex.def Info: images/rotating_sphere_munson.png used on input line ... ... @@ -8631,13 +8634,13 @@ LaTeX Warning: Reference fig_tornado' on page 1 undefined on input line 148. LaTeX Warning: Reference fig_rankine_vortex' on page 1 undefined on input line 148. File: F5_tornado_Elie_Manitoba_2007.jpg Graphic file (type jpg) Package pdftex.def Info: F5_tornado_Elie_Manitoba_2007.jpg used on input line 151. (pdftex.def) Requested size: 213.39568pt x 160.04578pt. File: RankineVortex.png Graphic file (type png) Package pdftex.def Info: RankineVortex.png used on input line 158. ... ... @@ -8922,7 +8925,7 @@ LaTeX Warning: Reference ch_bernoulli' on page 207 undefined on input line 225 LaTeX Warning: Reference ch_bernoulli' on page 207 undefined on input line 225 . File: integration_navierstokes_bernoulli.png Graphic file (type png) Package pdftex.def Info: integration_navierstokes_bernoulli.png used on input ... ... @@ -9115,10 +9118,10 @@ acy/fxlr.pfb> Output written on fluidmech.pdf (213 pages, 14874644 bytes). Output written on fluidmech.pdf (213 pages, 14874930 bytes). 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(./fluidmech.aux (./0/titlepage.aux) (./0/introduction.aux) (./1/chap1.aux) (./1/exercises1.aux) (./2/chap2.aux) (./2/exercises2.aux) (./3/chap3.aux) (./3/exercises3.aux) (./4/chap4.aux) (./4/exercises4.aux) (./5/chap5.aux) (./5/exercises5.aux) (./6/chap6.aux LaTeX Warning: Label eq_continuity_der' multiply defined. LaTeX Warning: Label eq_continuity_der@cref' multiply defined. ) (./6/exercises6.aux) (./7/chap7.aux) (./7/exercises7.aux) (./8/chap8_placeholder.aux) (./9/chap9.aux) (./9/exercises9.aux) (./10/chap10.aux) (./10/exercises10.aux) (./11/chap11.aux) (./5/exercises5.aux) (./6/chap6.aux) (./6/exercises6.aux) (./7/chap7.aux) (./7/exercises7.aux) (./8/chap8_placeholder.aux) (./9/chap9.aux) (./9/exercises9.aux) (./10/chap10.aux) (./10/exercises10.aux) (./11/chap11.aux) (./11/exercises11.aux) (./a/appendix.aux)) \openout1 = fluidmech.aux'. ... ... @@ -4262,38 +4255,38 @@ Package mdframed Info: mdframed works in twoside mode on input line 47. 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(pdftex.def) Requested size: 221.93376pt x 98.38972pt. [92 <./5/images/couette_flow.png>]) \openout2 = 5/exercises5.aux'. ... ... @@ -4460,7 +4453,7 @@ Package pdftex.def Info: particle_mass_conservation.png used on input line 132 png>] Package mdframed Info: mdframed works in twoside mode on input line 179. [104] File: particle_sum_forces.png Graphic file (type png) Package pdftex.def Info: particle_sum_forces.png used on input line 204. ... ... @@ -4468,7 +4461,7 @@ Package pdftex.def Info: particle_sum_forces.png used on input line 204. [105 <./6/images/particle_sum_forces.png>] [106] Package mdframed Info: mdframed works in twoside mode on input line 264. [107] Package mdframed Info: mdframed works in twoside mode on input line 328. Package mdframed Info: mdframed works in twoside mode on input line 331. [108] [109] Package mdframed Info: mdframed works in twoside mode on input line 385. ... ... @@ -4550,12 +4543,12 @@ Chapter 7. \openout7 = fluidmech.mtc'. 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[125 <./7/images/velocity_distribution_laminar_pipe.png>] <56AyTIhNQBo.jpg, id=2248, 803.0pt x 506.89375pt> <56AyTIhNQBo.jpg, id=2251, 803.0pt x 506.89375pt> File: 56AyTIhNQBo.jpg Graphic file (type jpg) Package pdftex.def Info: 56AyTIhNQBo.jpg used on input line 265. (pdftex.def) Requested size: 103.85237pt x 65.55045pt. File: reynolds1.jpg Graphic file (type jpg) Package pdftex.def Info: reynolds1.jpg used on input line 269. (pdftex.def) Requested size: 227.62204pt x 220.08733pt. File: reynolds2.png Graphic file (type png) Package pdftex.def Info: reynolds2.png used on input line 276. ... ... @@ -4640,14 +4633,14 @@ LaTeX Warning: Command \textquoteright invalid in math mode on input line 327. LaTeX Warning: Command \textquoteright invalid in math mode on input line 327. [128] File: velocity_distributions_laminar_turbulent_2.png Graphic file (type png) Package pdftex.def Info: velocity_distributions_laminar_turbulent_2.png used o n input line 349. 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File: vodkatonic.png Graphic file (type png) Package pdftex.def Info: vodkatonic.png used on input line 259. ... ... @@ -4845,12 +4838,12 @@ Chapter 9. \openout7 = fluidmech.mtc'. (./fluidmech.mtc11) File: ZMlm0gXPruI.jpg Graphic file (type jpg) Package pdftex.def Info: ZMlm0gXPruI.jpg used on input line 15. (pdftex.def) Requested size: 103.85237pt x 58.41129pt. <69445362.png, id=2529, 803.0pt x 434.62375pt> <69445362.png, id=2532, 803.0pt x 434.62375pt> File: 69445362.png Graphic file (type png) Package pdftex.def Info: 69445362.png used on input line 29. ... ... @@ -4861,7 +4854,7 @@ Package pdftex.def Info: 69445362.png used on input line 29. <./9/thumbs/ZMlm0gXPruI.jpg> <./9/thumbs/69445362.png>] [144] [145] Package mdframed Info: mdframed works in twoside mode on input line 119. 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