/DT/FVMBAG/Iflag

Engine Keyword Time step for control for Finite Volume Method airbag.

Format

/DT/FVMBAG/Iflag

$Δ T_{s c a}$ $Δ T_{\min}$

Data	Description	SI Unit Example
`Iflag`	Finite volumn merge flag. = 0 or blank The finite volume is merged if the time step < $Δ T_{\min}$ and airbag volume < 10 * the minimum volume defined in global merge, /FVMBAG/MODIF. = 1 The finite volume is merged, if time step < $Δ T_{\min}$ .
$Δ T_{s c a}$	Scale factor on time step.
$Δ T_{\min}$	Minimum time step.

The $Δ T_{s c a}$ and $Δ T_{\min}$ can be defined to insure stability and a minimum time step size by triggering additional finite volume merges when the FVMBAG entity penalizes the computation.