14.2.7 Evaluate_Ortho_Diffusion Procedure

The Evaluate_Ortho_Diffusion procedure evaluates an Ortho_Diffusion Term, that is, the - 71#31D72#3273#33 term, in its discretized form, at the cell centers.

Calling syntax:

call Evaluate (Diff_Term, Phi_MV, Div_D_Grad_Phi_Cells)

Input variables:

 Diff_Term  The Ortho_Diffusion Term to be evaluated.
 Phi_MV  The Phi Mathematic Vector to use in the evaluation.

Output variables:

 Div_D_Grad_Phi_Cells  The value of minus the divergence of D times the gradient of Phi for each cell.

The Evaluate_Ortho_Diffusion code listing contains additional documentation.

Michael L. Hall