[handbook][cleanup] Remove supperfluous sections

doc/handbook/0_dumux-handbook.tex

@@ -115,11 +115,6 @@ Universit\"at Stuttgart, Paffenwaldring 61, D-70569 Stuttgart, Germany}\\
 \newpage
 
 \chapter{Overview and Infrastructure}
-This chapter provides an overview of the general structure in \Dumux (\ref{sc_structure})
-and gives help for basic work with \Dumux
-(\ref{sc_newfoldersetup}-\ref{sc_developingdumux}).
-Further, it presents useful external tools (\ref{sc_externaltools}) and basic
-concepts (\ref{sc_linearsystem}).
 \input{5_structure}
 \input{5_newfoldersetup}
 \input{5_restartsimulations}
@@ -131,7 +126,6 @@ concepts (\ref{sc_linearsystem}).
 This chapter contains detailed information for those who are interested
 in deeper modifications of underlying \Dumux models, classes, functions, etc.
 \input{6_temporaldiscretizations}
-\input{6_stepsofasimulation}
 
 \bibliographystyle{plainnat}
 \bibliography{dumux-handbook}

doc/handbook/6_stepsofasimulation.tex

-% SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
-% SPDX-License-Identifier: CC-BY-4.0
-
-\section{Steps of a \Dumux Simulation}
-\label{flow}
-
-
-This chapter is supposed to give a short overview over how things are ``handed around'' in \Dumux. It
-is not a comprehenisve guide through the modeling framework of \Dumux, but
-hopefully it will help getting to grips with it.
-
-In Section \ref{content} the structure of \Dumux is shown from a \emph{content}
-point of view.
-
-\subsection{Structure -- by Content}
-
-\label{content}
-In Figure \ref{fig:algorithm}, the algorithmic representations of a monolithical
-solution scheme is illustrated down to the element level.
-
-\begin{figure}[hbt]
-\setcounter{thingCounter}{0}
-
-\scriptsize
-\sffamily
-\begin{center}\parbox{0cm}{
-\begin{tabbing}
-\textbf{{\begin{turn}{45}\color{black}\numberThis{main}{init}\end{turn}}}             \=
-\textbf{{\begin{turn}{45}\color{dumuxBlue}\numberThis{time step}{prep}\end{turn}}}            \=
-\textbf{{\begin{turn}{45}\color{Mulberry}\numberThis{\textsc{Newton}}{elem}\end{turn}}}         \=
-\textbf{{\begin{turn}{45}\color{dumuxYellow}\numberThis{element}{calc}\end{turn}}}             \=  \\
-\\
-\color{black}initialize \\
-\color{black}\textbf{foreach} time step\\
-
-  \> \color{dumuxBlue}\textbf{foreach} \textsc{Newton} iteration \\
-
-    \> \> \color{Mulberry}\textbf{foreach} element \\
-
-      \> \> \> \color{dumuxYellow}- calculate element \\
-      \> \> \> \color{dumuxYellow}\; residual vector and \\
-      \> \> \> \color{dumuxYellow}\; Jacobian matrix\\
-      \> \> \> \color{dumuxYellow}- assemble into global\\
-      \> \> \> \color{dumuxYellow}\; residual vector and \\
-      \> \> \> \color{dumuxYellow}\;{Jacobian} matrix \\
-
-    \> \> \color{Mulberry}\textbf{endfor} \\
-
-    \> \> \color{Mulberry}solve linear system\\
-    \> \> \color{Mulberry}update solution\\
-    \> \> \color{Mulberry}check for \textsc{Newton} convergence\\
-  \> \color{dumuxBlue}\textbf{endfor}\\
-  \> \color{dumuxBlue}- adapt time step size, \\
-  \> \color{dumuxBlue}\; possibly redo with smaller step size\\
-  \> \color{dumuxBlue}- write result\\
-\color{black}\textbf{endfor}\\
-\color{black}finalize
-\end{tabbing}}
-\end{center}
-\caption{Structure of a monolithical solution scheme in \Dumux.}
-\label{fig:algorithm}
-\end{figure}
-
-\subsection{Structure -- by Implementation}
-A possible starting point to understand how the above mentioned algorithm is implemented within \Dumux,
-is the example main file
-\url{https://git.iws.uni-stuttgart.de/dumux-repositories/dumux-course/-/blob/releases/\DumuxVersion/exercises/exercise-mainfile/exercise1pamain.cc}