Source terms and mesh generation
Dear Users, which kind of mesh generator do you recommend to get a good mesh for an airfoil simulation? Actually I am using Gmsh. My next question deals with the CompressibleFlowSolver in Nektar++. Is there a possibility to get acoustical source terms during a simulation with its? Best regards Fabian
Dear users, can somebody send me an example of an APE-Simulation by a source from file of another simulation? Is it actually possible to do something like that in Nektar++? To take the base flow from a simulation is easy, but to get the acoustical source term is quit difficult and actually not possible, I think. Am I right? Best regards Fabian ________________________________ Von: Selbach, Fabian Gesendet: Freitag, 27. Januar 2017 16:14 An: nektar-users@imperial.ac.uk Betreff: Source terms and mesh generation Dear Users, which kind of mesh generator do you recommend to get a good mesh for an airfoil simulation? Actually I am using Gmsh. My next question deals with the CompressibleFlowSolver in Nektar++. Is there a possibility to get acoustical source terms during a simulation with its? Best regards Fabian
Hi Fabian, Sorry we seem to be behind on responding to your emails. We are developing software to use our own generator NekMesh but we are really just in the testing phase. We hope to release this along side the release of4.4 which is currently due to be released around Feb 23rd. We also have a tutorial so that will provide some idea of what we can do. Regarding the APE-Simulations Killian is best placed to comment on this. Cheers, Spencer. On 7 Feb 2017, at 12:13, Selbach, Fabian <fabian.selbach@student.uni-siegen.de<mailto:fabian.selbach@student.uni-siegen.de>> wrote: Dear users, can somebody send me an example of an APE-Simulation by a source from file of another simulation? Is it actually possible to do something like that in Nektar++? To take the base flow from a simulation is easy, but to get the acoustical source term is quit difficult and actually not possible, I think. Am I right? Best regards Fabian ________________________________ Von: Selbach, Fabian Gesendet: Freitag, 27. Januar 2017 16:14 An: nektar-users@imperial.ac.uk<mailto:nektar-users@imperial.ac.uk> Betreff: Source terms and mesh generation Dear Users, which kind of mesh generator do you recommend to get a good mesh for an airfoil simulation? Actually I am using Gmsh. My next question deals with the CompressibleFlowSolver in Nektar++. Is there a possibility to get acoustical source terms during a simulation with its? Best regards Fabian _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052
Hi Fabian, there are a number of different source term formultations people use for the APE, so our implementation is "source-term agnostic" in the way that you can specify whatever RHS you want. I dont think we have a tool to compute derived fields (e.g. acoustic source terms) from other fields (e.g. velocity, pressure, density ...) right now. So you could either convert the fld files from the CompressibleFlowSolver to pts, read those with python, matlab, etc., compute the source term, store it as pts again and feed this into the APESolver. This is what other people do. The alternative would be writing a FieldConvert module to take care of this. Cheers, Kilian Am Dienstag, 7. Februar 2017, 12:13:30 CET schrieb Selbach, Fabian:
Dear users,
can somebody send me an example of an APE-Simulation by a source from file of another simulation? Is it actually possible to do something like that in Nektar++?
To take the base flow from a simulation is easy, but to get the acoustical source term is quit difficult and actually not possible, I think. Am I right?
Best regards
Fabian ________________________________ Von: Selbach, Fabian Gesendet: Freitag, 27. Januar 2017 16:14 An: nektar-users@imperial.ac.uk Betreff: Source terms and mesh generation
Dear Users,
which kind of mesh generator do you recommend to get a good mesh for an airfoil simulation? Actually I am using Gmsh.
My next question deals with the CompressibleFlowSolver in Nektar++. Is there a possibility to get acoustical source terms during a simulation with its?
Best regards
Fabian
-- Kilian Lackhove, M.Sc. Fachgebiet für Energie- und Kraftwerkstechnik L1|08 114 Technische Universität Darmstadt Jovanka-Bontschits-Straße 2 D-64287 Darmstadt Germany Tel.: +49 6151 16 - 28915 Fax: +49 6151 16 - 6555 e-mail: lackhove@ekt.tu-darmstadt.de
participants (3)
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Kilian Lackhove
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Selbach, Fabian
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Sherwin, Spencer J