Hello,
I am new to NGSolve, I am trying to write the bilinear form and the linear form for the Stokes problem, but I get an error as follows
.
f = LinearForm(X)
f +=InnerProduct(rhs,v)*dx #Use the code to calc the righthandside
f +=InnerProduct(U_ex,v)*ita/h*ds(skeleton=True)
f +=InnerProduct(grad(v)*n,U_ex)
f.Assemble()
---> 33 f +=InnerProduct(rhs,v)*dx #Use the code to calc the righthandside 34 f +=InnerProduct(U_ex,v)*ita/h*ds(skeleton=True) 35 f +=InnerProduct(grad(v)*n,U_ex)
NgException: In MakeLinearFormIntegrator: must not have TrialFunction
v is a test function not a trial function
Any help would be really appreciated
Thank you