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docs(com1DFA): clarify time-stepping configuration in docs and config file #1286

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fso42 merged 1 commit into from
Jun 2, 2026
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docs(com1DFA): clarify time-stepping configuration in docs and config file #1286

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4 changes: 2 additions & 2 deletions avaframe/com1DFA/com1DFACfg.ini
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Expand Up @@ -158,9 +158,9 @@ timeStepDistance = 5
dt = 0.1
# End time [s]
tEnd = 400
# to use a variable time step (time step depends on kernel radius)
# to use a time step that is consistent with the kernel radius (i.e. time step depends on kernel radius)
sphKernelRadiusTimeStepping = False
# Upper time step limit coefficient if option sphKernelRadiusTimeStepping is chosen.
# if option sphKernelRadiusTimeStepping is True, cMax and the sphKernelRadius define the computational time step
cMax = 0.02
# stopCriterion (based on massFlowing or kinEnergy)
stopCritType = kinEnergy
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4 changes: 2 additions & 2 deletions docs/com1DFAAlgorithm.rst
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Expand Up @@ -200,8 +200,8 @@ The mass and momentum equations described in :ref:`theoryCom1DFA:Governing Equat
in time using an operator splitting method. The different forces involved are sequentially added to update the velocity
(see :ref:`DFAnumerics:Adding forces`).
Position is then updated using a centered Euler scheme.
The time step can either be fixed or dynamically computed using the Courant–Friedrichs–Lewy (CFL) condition
(in the second case one must set ``cflTimeStepping`` to ``True`` and set the desired CFL coefficient).
The time step can either be fixed or computed to be consistent with the SPH kernel size (see
``sphKernelRadiusTimeStepping`` in the com1DFA configuration).

Go back to :ref:`com1DFAAlgorithm:Algorithm graph`

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