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The tutorial on overset meshing should answer all of your questions: https://mdolab-mach-aero.readthedocs-hosted.com/en/latest/machAeroTutorials/overset_surface_mesh.html But in short, |
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Hello,
I am new to working with cgns grid files; I would be asking couple of dumb or obvious questions, I really hope you can still answer them.
Q1. When I am generating a 2D/3D structured grid using pointwise and read it into the ADflow runscript, what would be the right solver to be selected?
I have chosen the cgns obviously, since MACH-AERO was not listed, I just want to make sure it's the right place to get started.
Q2 a) When I generate grid in Pointwise (for 2D), will a 2D surface mesh alone be sufficient (a single domain) or should I extrude it to a volume mesh (a block) within pointwise itself; just like how the airfoil mesh is generated in the tutorial. (https://mdolab-mach-aero.readthedocs-hosted.com/en/latest/machAeroTutorials/airfoilopt_mesh.html).
b) In continuation to first part of Q2a; or would it be prefereable to read the surface mesh into pyhyp and then generate a volume instead? which would likely help with reading grid file into the solver...
Q3. I am trying to solve for an 2D external flow of a mini-turbojet engine, as shown in the image below; the domain and grid.
CFD Domain:
Grid:
When I try to read the cgns file into the solver I get the following error; seems like solver cannot read the grid file. :/
I strognly feel it has to do with the grid file format or data inside it which are not favorable to be opened and read. I am not able to get past this.! (However when I read the same grid file into Paraview it reads perefectly fine just like the other airfoil grids generated from the tutorial.)
I would really appreciate asistance with this issue!
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