EQ = vort_dir{1|2|3} {Galerkin_wt} {VD1|VD2|VD3} {Interpol_fnc}

Description / Usage#

This card provides information for solving a differential equation for one component of the vorticity equation. Definitions of the input parameters are defined below; there is no <float> input for this equation. The Galerkin weight and the interpolation function must be the same for the code to work properly.

vort_dir1 | vort_dir2 | vort_dir3

Name of the equation to be solved, where the 1, 2 and 3 components correspond to one of the principal coordinate directions, e.g. X, Y and Z for Cartesian geometry.


Two–character value that defines the type of weighting function for this equation, where:

  • Q1-Linear

  • Q2-Quadratic

VD1 | VD2 | VD3

Name of the variable associated with the 1, 2 or 3 principal coordinate direction for this component equation.


Two-character value that defines the interpolation function used to represent the variable VD1, VD2 or VD3, where:

  • Q1-Linear

  • Q2-Quadratic


The following is a sample card that uses a linear continuous interpolation and weight function:

EQ = vort_dir1 Q1 VD1 Q1

Technical Discussion#

This equation type is used for a research capability involving the flows of suspensions in curvilinear coordinates and is not currently being used for production computations.