Re: [Libmesh-users] Neumann and Robin bcs with FemSystem

2015-10-09 Thread Zhang
Moreover, my case is the flow field around rotating blades. Reynolds averaged N-S system to be solved. Zhenyu 主题: Re: [Libmesh-users] Neumann and Robin bcs with FemSystem Hi, I recognized the discussion on http://sourceforge.net/p/libmesh/mailman/message/34410125/ Now it is also a

Re: [Libmesh-users] Neumann and Robin bcs with FemSystem

2015-10-09 Thread Zhang
Hi, I recognized the discussion on http://sourceforge.net/p/libmesh/mailman/message/34410125/ Now it is also a question for me. I want to combine one static domain and another rotating domain together. Both of them are partly overlaped. Nitzsche methods may be considered. Could anyone giv

Re: [Libmesh-users] Neumann and Robin bcs with FemSystem

2015-08-27 Thread Paul T. Bauman
On Thu, Aug 27, 2015 at 6:38 AM, wrote: > > When using the FemSystem class, what is the best way to implement > Neumann and Robin boundary conditions? For "standard" boundary Neumann/Robin terms, override side_time_derivative in your FEMSystem subclass. That function is only called for elements

[Libmesh-users] Neumann and Robin bcs with FemSystem

2015-08-27 Thread martin . luethi
Hi all, When using the FemSystem class, what is the best way to implement Neumann and Robin boundary conditions? Is this still by adding penalty terms to matrix and RHS? If yes, does this collide with using the DirichletBoundary class (I think it shouldn't)? Or should all bcs be enforced with pe