 ### 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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