> am I correct in reading shape_hessian is now > shape_2nd_derivative ?
The other way round, you should use shape_hessian. > For example, the three dimensional beam problem has > fourth derivatives in the PDE in all dimensions. You would use a mixed approach, or implement plate elements. > I have a long way to go to learn the "deal.II diction" as you say, > and I have to understand the "abstractions" in order to use them. You will want to read this page to understand how to code the Navier-Stokes equations: http://www.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 [email protected] http://poisson.dealii.org/mailman/listinfo/dealii
