Keyword: calcflux
Compute derivatives of solution. Depending on the problem, this function computes the gradient, the flux, strain or stress, magnetic induction, etc...
Example:
numproc calcflux pp1 -bilinearform=a -solution=u -flux=p -applyd
Flags are:
| bilinearform=<name> | The flux is defined by the first integrator of the bilinearform |
| solution=<name> | The input gridfunction |
| flux=<name> | The output gridfunction. Must be nodal-valued or element by element. |
| -applyd | apply coefficientmatrix. Switches between stress and strain, or B-field and H-field |