9.0
general documentation
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Writing the theory documentation

General rules

Theses general rules should be seen as basic golden rules helping the whole documentation to be consistent. They are strongly recommended:

  • Follow a plan where you first present a general overview of the theory (what is it about, what is the main goal), then you present the equations in general, and finally the specific choices you have made.
  • Use the macros described in the macros section *i.e* usepackage{csmacros}).
  • Use the notations defined in the nomenclature of the theory guide as much as possible.
  • Focus on your specificities and cite the generalities (external to EDF!), which you should add to the csbiblio.bib file located in the doc/style directory.
  • Write in English (UK for the theory manual, US for the rest, for consistence with existing documentation).
  • Use the existing style of code_saturne, that is to say use the csdoc.csl class (for long documents as a report) csshortdoc.cls` class (for short documents as an article).
  • Respect $ \mbox{\LaTeX} $ philosophy, as it is designed to make sensible spacing decisions by itself, do not use explicit horizontal or vertical spacing commands, except in a few accepted (mostly mathematical) situations.
  • keep your own macros to an absolute minimum.

Macros and typography

This section does not pretend to describe how to write a $ \mbox{\LaTeX} $ document, but is to present the macros defined in csmacro.sty and give some typographic pieces of advice.

Macros

The \CS macro in the csdoc.sty package is used to allow a short syntax and typeset the code_saturne name in a proper and consistant manner.

The available macros for mathematical symbols are available through the csmacros.sty package.

Mathematical operators defined in csmacros
$ \mbox{\LaTeX} $ code preview comment
$\divs$ $ \divs $
$\divv$ $ \divv $
$\divt$ $ \divt $
$\grad$ $ \grad $
$\ggrad$ $ \ggrad $
$\gradv$ $ \gradv $
$\gradt$ $ \gradt $
$\gradtt$ $ \gradtt $
$\mat{M}$ $ \mat{M} $
$\matt{M}$ $ \matt{M} $
$\rot$ $ \rot $
$\vect{V}$ $ \vect{V} $
$\tens{T}$ $ \tens{T} $
$\transpose{M}$ $ \transpose{M} $
$\symmetric{M}$ $ \symmetric{M} $
$\trace$ $ \trace $
$\deviator{M}$ $ \deviator{M} $
$\norm{M}$ $ \norm{M} $
$\rans{M}$ $ \rans{M} $
$\fluct{M}$ $ \fluct{M} $
$\fluctt{M}$ $ \fluctt{M} $
$\favre{M}$ $ \favre{M} $
$\ints{M}{N}$ $ \int{M}{N} $
$\intss{M}{N}$ $ \intss{M}{N} $
$\intt{M}{N}$ $ \intt{M}{N} $
\degresC $\mbox{\degresC}$
$\Max$ $ \Max $
$\Min$ $ \Min $
$\dd$ $ \dd $ total derivative

Many macros are dedicated to discretized quantity notations used throughout code_saturne. The following table lists the main ones, but may not be complete, so checking the actual contents of csmacros.sty is always recommened.

Discretized quanties defined in csmacros
$ \mbox{\LaTeX} $ code preview comment
$\Facei{\celli}$ $ \Facei{\celli} $ set of internal faces
$\Faceb{\cellj}$ $ \Faceb{\cellj} $ set of boundary faces
$\Face{\celli}$ $ \Face{\celli} $ set of faces
$\face$ $ \face $ face
$\fij$ $ \fij $ internal face
$\fib$ $ \fib $ boundary face
$\iface$ $ \iface $ oriented face
$\ij$ $ \ij $ oriented internal face
$\ib$ $ \ib $ oriented boundary face
$\celli$ $ \celli $ name of the current cell
$\cellj$ $ \cellj $ name of the adjacent cell
$\ipf$ $ \ipf $ orthogonal center index of the current cell
$\jpf$ $ \jpf $ orthogonal center index of the adjacent cell
$\centi$ $ \centi $ center of the current cell
$\centj$ $ \centj $ center of the adjacent cell
$\centip$ $ \centip $ orthogonal center of the current cell
$\centjp$ $ \centjp $ orthogonal center of the adjacent cell
$\cento$ $ \cento $ intersection between the cell centers and the face
$\centf$ $ \centf $ center of the face

Typography

Here are some useful tricks:

  • If you want to describe multiple topics, use the \begin{itemize} \item \end{itemize} environment.
  • You can use blue and orange EDF colors with the blue \textcolor{blueedf}{text}, its darker version \textcolor{bluededf}{text}, or the orange \textcolor{orangeedf}{text} and its the dark version \textcolor{orangededf}{text}.
  • Use label and references, and dissociate equations with sections and appendices and figures and tables using \label{eq:label}, \label{sec:label}, \label{ap:label}, \label{fig:label} and \label{tab:label} prefixes.
  • Use the \emph{} mode for acronyms (e.g., EDF).
  • Use the \emph{} mode for Latin words (e.g., i.e., a priori, etc.).
  • Use \left( instead of ( and \right) instead of ) in math mode.
  • DO NOT put a space before the ":" symbol. In English the rule is no space, never.
  • DO NOT use \newline or \\ except in a tabular environment or an array.
  • Write "Equation" with a first upper case letter. Use \figurename~ and \tablename~ to write $ \figurename $ and $ \tablename $.
  • Use the enumerate environment:
    \begin{enumerate}[ label=\roman{*}/, ref=(\roman{*})]
    \item $1^{st}$ item
    \item $2^{nd}$ item
    \end{enumerate}
    i/ 1st item
    ii/ 2nd item
  • Use the remarks \begin{remark} \end{remark} and example \begin{example} \end{example} environments defined in csdoc.cls:
    \begin{remark}
    A remark
    \end{remark}
    \begin{example}
    An example
    \end{example}}
    Remark 1.1 A remark
    Example 1.1 _An example