VELOCITY_CAP
Boundary conditions
*VELOCITY_CAP
$v_{max}^{N}$, $v_{max}^{DP1}$, $v_{max}^{DP2}$, $v_{max}^{CFD}$
$v_{max}^{N}$, $v_{max}^{DP1}$, $v_{max}^{DP2}$, $v_{max}^{CFD}$
Parameter definition
Variable
Description
$v_{max}^{N}$
Finite Element node velocity cap
$v_{max}^{DP1}$
Discrete particle (SOIL and SPH) velocity cap
$v_{max}^{DP2}$
Discrete particle (AIR and HE) velocity cap
$v_{max}^{CFD}$
CFD velocity cap
Description
This command is used to define an upper limit for node, discrete particle and SPH velocities. The purpose it to prevent single nodes or particles, that (for numerical reasons) have reached extreme velocities, from destroying the simulation results. Nodes and particles that are moving too fast are simply brought back to the specified maximum allowed levels.
