Hi Fabian, As of today, the easiest way to achieve what you described would be to run the CompressibleFlowSolver as usual and use the .chk files it creates as basefields for the APESolver as described in the userguide section 3.3.6.2. In case you have different meshes for the CompressibleFlowSolver and APESolver, you will have to convert the chk files to pts files first, so that the APESolver can interpolate them to during runtime. This interpolation will be horribly slow in the currently released versions, so you probably want to use the current master branch which it will only take a few seconds for the same task. The different naming of variables can be handled as described in section 3.3.6.1. I don't think we have the functionality to compute the acoustic source term in Nektar++, but since the pts files are just simple text files, this can be done in any postprocessing tool. Cheers, Kilian Am Montag, 18. Juli 2016, 13:32:30 CEST schrieb Selbach, Fabian:
Hello,
i have a question about coupling two solvers. First of all i make a simulation with a NACA-profile by using the NavierStokesCFE of the CompressibleFlowSolver. The solution of this i want to use to simulate the acoustic of its by solving the APE-equation. Is there an easy way to couple both solver and to simulate the acoustic of the flow around a NACA-profile?
I need the acoustic source terms (c²*qc) for the APE-Solver to simulate the sound. I should get those by the solution of the NACA flow (by the CompressibleFlowSolver), but i actually i do not see a possible to get them. Is there a way or do i have to program it's on my own into the code of the CompressibleFlowSolver to handle and couple them into the APESolver?
The difference between the solver-variables p, u and v ( in the CompressibleFlowSolver the absolute values and in the APESolver the fluctuations) i solved by calculating them in form of p(APE) = p(CFS) - pInf and so on.
I hope somebody can give me an answer. Thank you already!
Best regards
Fabian _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users -- Kilian Lackhove, M.Sc. Fachgebiet für Energie- und Kraftwerkstechnik L1|08 114 Technische Universität Darmstadt Jovanka-Bontschits-Straße 2 D-64287 Darmstadt Germany
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