Re: [deal.II] Geometric Conservation Law

2020-06-16 Thread Alexander Cicchino
Thank you for responding Wolfgang Bangerth. The GCL condition comes from the discretized scheme satisfying free-stream preservation. I will demonstrate this for 2D below, (can be interpreted for spectral, DG, finite difference, finite volume etc): Consider the conservation law: \frac{\partial

Re: [deal.II] Geometric Conservation Law

2020-06-17 Thread Alexander Cicchino
d be > great. If you would be interested in this feature and trying to implement > things, I'd be happy to guide you to the right places in the code. > > Best, > Martin > On 17.06.20 06:02, Alexander Cicchino wrote: > > Thank you for responding Wolfgang Bangerth. > > The GCL co

Re: [deal.II] Geometric Conservation Law

2020-06-22 Thread Alexander Cicchino
erse > Jacobian in deal.II does not yet pre-multiply with the determinant. > > Does that procedure sound reasonable to you? If yes, we could start > putting together the ingredients. It would be good to have a mesh (the > curvilinear case you were mentioning) where we can test th

[deal.II] Geometric Conservation Law

2020-06-16 Thread Alexander Cicchino
Hello, I am wondering if anybody has also found that the inverse of the Jacobian from FE Values, with MappingQGeneric does not satisfy the Geometric Conservation Law (GCL), in the sense of: Kopriva, David A. "Metric identities and the discontinuous spectral element method on curvilinear

Re: [deal.II] Geometric Conservation Law

2020-07-09 Thread Alexander Cicchino
8 PM UTC-4, Alexander Cicchino wrote: > > Dear Martin, > > I would like to start by thanking you for all of your help. Here is a link > to my fork: https://github.com/AlexanderCicchino/dealii > It is not fully working yet, I need your help for the "evaluate" as you > menti

Re: [deal.II] Geometric Conservation Law

2020-07-03 Thread Alexander Cicchino
epetitive if we use a single place. > > Best, > Martin > On 22.06.20 19:59, Alexander Cicchino wrote: > > Dear Martin, > > Thank you very much! I have been working on making the test case not > depend on our in house flowsolver's functions. > I think that implementing Eq. 36

Re: [deal.II] Geometric Conservation Law

2020-07-10 Thread Alexander Cicchino
for ease automatically differentiating the metric terms? Thank you for all the help, Alex On Thursday, July 9, 2020 at 11:54:12 AM UTC-4, Alexander Cicchino wrote: > > Dear Martin, > > As an update, I figured out a way to have it work in 3D without needing to > use another Evaluate call.