Example 1: test mesh edges and boundary faces for negative coupling coefficients.

The objective is to use the negative_aij / rivara command that first identifies elements that have negative coupling coefficents, and then proceeds with a rivara boundary refinement to reduce or eliminate the negative couplings.

The output consists of one gmv file.

Input

lagrit_input_rivara

Images of GMV input and output

The details of the coupling coefficient statistics can be found in the output log file.

Input geometry

(view A)

Output geometry

(view B)