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[Gmsh] Nasa Nozzle: Plot 3D -->gmsh -->fluent - no physical groups |
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June 12, 2016, 11:50 |
Nasa Nozzle: Plot 3D -->gmsh -->fluent - no physical groups
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#1 |
New Member
Nico Guettler
Join Date: Jun 2016
Posts: 2
Rep Power: 0 |
Hello guys,
I am a new user of Ansys fluent and Gmsh. In my first project I have to simulate an acoustic research nozzle 2 from NASA and compare some turbulence models. http://turbmodels.larc.nasa.gov/jetsubsonic_val.html So i have downloaded the different meshtypes (3D) + Neutral Map files from this homepage: http://turbmodels.larc.nasa.gov/jetsubsonic_grids.html If I import only the .p3dfmt to Fluent I have no information about the boundary surfaces. So i converted my .p3dfmt together with the NeutralMapFile into a gmsh-file using this script. https://github.com/mrklein/p3d2gmsh Now in Gmsh i could see the boundary zones. But if I look into the .geo file it looks a bit strange. I think there is something wrong?! Discrete Face(-1) = {}; Physical Surface("b2-periodic_1deg") = {-1}; Physical Surface("b3-periodic_1deg") = {-1}; Physical Surface("b4-periodic_1deg") = {-1}; Physical Surface("b5-periodic_1deg") = {-1}; Physical Surface("b6-periodic_1deg") = {-1}; Physical Surface("b7-periodic_1deg") = {-1}; Physical Surface("b8-subsonic_inflow_pt") = {-1}; Physical Surface("b9-farfield_riem") = {-1}; Physical Surface("b10-viscous_solid") = {-1}; Physical Surface("b11-back_pressure") = {-1}; Physical Surface("b12-singular_axis") = {-1}; Physical Surface("b13-viscous_solid") = {-1}; Physical Surface("b14-singular_axis") = {-1}; Physical Surface("b15-viscous_solid") = {-1}; Physical Surface("b16-farfield_riem") = {-1}; Physical Surface("b17-farfield_riem") = {-1}; Physical Surface("b18-to-stitch-a") = {-1}; Physical Surface("b19-to-stitch-b") = {-1}; Physical Surface("b20-to-stitch-a") = {-1}; Physical Surface("b21-to-stitch-b") = {-1}; Physical Volume("mesh") = {-1}; So if I export this .msh from gmsh to fluent using a Nastran Bluk data file format the information about the physical groups get lost. (I dont clicked "save - ignore physical groups) In addition other formats like .unv does not give the right informations in fluent. My questions: 1. Is there something wrong with my physical groups in gmsh? 2. How could I export the whole informations including physical groups? 3. Are there any other ways to get the .p3d together with the .nmf into fluent? Attachements: .p3dfmt, .nmf, .msh http://www.file-upload.net/download-...e_129.zip.html ps: I am using gmsh 2.12 and Ansys v17 Thanks for your help Nico |
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June 14, 2016, 06:40 |
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#2 |
New Member
Nico Guettler
Join Date: Jun 2016
Posts: 2
Rep Power: 0 |
Okay i have discared the gmsh data.
Instead of that i created my own surfaces using Icem and the option ofcreating new parts! |
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export, fluent, gmsh, plot3d |
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