> So in 3d if U, V, W being the displacements in X, Y and Z directions and > if I want to use fe_values.shape_grad(i,q) to write Ux + Uy - Wz, how do > I differentiate between (U,V,W) and (X,Y,Z). I would like to clarify my > confusion here because I am trying to solve an equation which has 4 > individual components (say U, V, W, H) with spatial derivatives in (X, > Y, Z) mixed up just like Ux + Uy - Wz.
The module on vector-valued problems should be able to answer this: http://dealii.org/developer/doxygen/deal.II/group__vector__valued.html W. ------------------------------------------------------------------------- Wolfgang Bangerth email: [email protected] www: http://www.math.tamu.edu/~bangerth/ _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
