> I need to solve let's say the heat equation over a domain made of two > different bodies. The heat flux must be discontinuous at the interface > between the two bodies.
So is the heat flux a variable in your formulation? But thinking about it, what I imagine you want to say is not that the heat flux is discontinuous, but that the gradient of the temperature is discontinuous, right? > - Generate a mesh where the interface is explicitly meshed. I am used > to GMSH, which does not deal very well with hexas. Is there any good > hexa mesher that you would advice? Cubit. Though I don't know its current status as open source. If your domain is sufficiently simple, you can also often generate meshes "by hand", as for example in step-14. > - Generate a regular mesh and then "cut" it along the interface. I > have seen such work for tetras, but I am not really sure it is even > possible for hexas... Is there any good hexa mesh modification tool that > you would advice? I don't know. > - I am used to the extended finite element method where one enriches > the approximation space of the elements cut by the interface by > introducing additional degrees of freedom in order to capture the > discontinuity without any need for remeshing. Is there such or > comparable possibility inside deal.II? No, not currently. Best W. ------------------------------------------------------------------------- Wolfgang Bangerth email: [email protected] www: http://www.math.tamu.edu/~bangerth/ _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
