Commit c37bd168 authored by Andrea Cassinelli's avatar Andrea Cassinelli

Added user guide entry on CFLWriteFld feature

parent 00ce50c4
......@@ -887,14 +887,18 @@ The following parameters can be specified in the \inltt{PARAMETERS} section of
the session file:
\begin{itemize}
\item \inltt{TimeStep}: sets the time-step for the integration in time formula
\item \inltt{NumSteps}: sets the number of time-steps
\item \inltt{Kinvis}: sets the cinematic viscosity coefficient formula
\item \inltt{SubStepCFL}: sets the CFL safety limit for the sub-stepping algorithm (default value = 0.5)
\item \inltt{MinSubSteps}: perform a minimum number of substeps in sub-stepping algorithm (default is 1)
\item \inltt{MaxSubSteps}: perform a maxmimum number of substeps in sub-stepping algorithm otherwise exit (default is 100)
\item \inltt{SVVCutoffRatio}: sets the ratio of Fourier frequency not affected by the SVV technique (default value = 0.75, i.e. the first 75\% of frequency are not damped)
\item \inltt{SVVDiffCoeff}: sets the SVV diffusion coefficient (default value = 0.1 (Exponential and Power kernel), 1 (DG-Kernel))
\item \inltt{TimeStep}: sets the time-step for the integration in time formula.
\item \inltt{NumSteps}: sets the number of time-steps.
\item \inltt{IO\_CheckSteps}: sets the number of steps between successive checkpoint files.
\item \inltt{IO\_InfoSteps}: sets the number of steps between successive info stats are printed to screen.
\item \inltt{Kinvis}: sets the cinematic viscosity coefficient formula.
\item \inltt{SubStepCFL}: sets the CFL safety limit for the sub-stepping algorithm (default value = 0.5).
\item \inltt{MinSubSteps}: perform a minimum number of substeps in sub-stepping algorithm (default is 1).
\item \inltt{MaxSubSteps}: perform a maxmimum number of substeps in sub-stepping algorithm otherwise exit (default is 100).
\item \inltt{SVVCutoffRatio}: sets the ratio of Fourier frequency not affected by the SVV technique (default value = 0.75, i.e. the first 75\% of frequency are not damped).
\item \inltt{SVVDiffCoeff}: sets the SVV diffusion coefficient (default value = 0.1 (Exponential and Power kernel), 1 (DG-Kernel)).
\item \inltt{IO\_CFLWriteFld}: sets a treshold value for the CFL number. If CFL exceeds this value, the flow field is written to file (only once). This is useful for debugging purposes, allowing to visually inspect a flow field that is becoming unstable.
\item \inltt{IO\_CFLWriteFldNumSteps}: sets the number of timesteps after which \inltt{IO\_CFLWriteFld} becomes operational. This avoids writing the flow field at the beginning of a simulation when initialising a new geometry.
\end{itemize}
\subsection{Womersley Boundary Condition}
......
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