Hi all This may not be a deal.II question but I am hoping there may be some nice solution already available in deal.II
I need to use the cell size h in the dissipation term of a DG scheme. For adapted grids or non-uniform grids, the cell size varies in a discontinuous way, which affects the solution, since now the numerical dissipation varies in a discontinuous way. Is there any simple way to construct a smoother function h(x) which gives the cell size variation. I could start with a FE_DGQ(0) function for the cell size and then project this to FE_Q(1). Is there any better solution, and is there a shortcut (some available function) that does this ? Thanks praveen
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