Vorticity Vector#

Vorticity Vector = {yes | no}

Description / Usage#

This option allows the user to output the vorticity vector to the output EXODUS II file. It applies to problems with the fluid momentum equations (see EQ = momentum* cards). The output nodal variables are named VORTX, VORTY, VORTZ.

The permissible values for this postprocessing option are:

yes

Calculate the vorticity vectors and store in the output EXODUS II file.

no

Do not calculate the vorticity vectors.

Examples#

This example card requests that vorticity vectors be written to the EXODUS II file:

Vorticity Vector = yes

Technical Discussion#

The vorticity vector function, \(\underline\omega\) , is defined in terms of the velocity \(\underline\upsilon\) as:

../../_images/336_goma_physics.png