Commit 107458d0 authored by Olivier's avatar Olivier

Chapter 4: harmonized with chapter 5 (minor)

parent dfdb2bd3
\renewcommand{\lastedityear}{2019}
\renewcommand{\lasteditmonth}{03}
\renewcommand{\lasteditday}{30}
\renewcommand{\lasteditday}{31}
\renewcommand{\numberofthischapter}{4}
\renewcommand{\titleofthischapter}{\namechapterfour}
......@@ -32,12 +32,13 @@
F_\text{pressure} & = & p_\text{uniform} \ S_\text{flat wall}
\end{IEEEeqnarray}
When the fluid pressure $p$ is not uniform (for example, as depicted on the right side of the wall in figure~\ref{fig_pressure_distribution_plate_two}), the situation is more complex: the force must be obtained by integration. The surface is split in infinitesimal portions $\diff S$, and the corresponding forces are summed up as:
When the fluid pressure $p$ is not uniform (for example, as depicted on the right side of the wall in figure~\ref{fig_pressure_distribution_plate_two}), 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{pressure} & = & \int_S \diff F & = & \int_S p \diff S \label{eq_pressure_force_scalar}
F_\text{pressure} & = & \int_S \diff F_\text{pressure} & = & \int_S p \diff S \label{eq_pressure_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}
\begin{figure}[ht!]
\begin{center}
......
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