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



Δ T sca 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 sca Scale factor on time step.  
Δ T min Minimum time step.  


  1. The Δ T sca 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.