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Would it be possible to add a 3D example of RANS, SST model with wind tunnel (6 walls) and an obstacle to simulate wind flow? Ultimately I'd like to see how to retrieve resulting pressures on a surface from the model, after providing inlet flow. I've tried adapting Multiphysics FSI 2D model with no luck, too many possible input issues on my end, and the SU2_CFD executable reports no errors when loading config, just finishes with no output or results. Meshes I've tried were generated from GMSH (tets for wind tunnel volume and tri for obstacle as a planar surface). I'm a new user so please excuse my lack of knowledge using SU2. An example would be great help! Thanks! |
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Replies: 1 comment 8 replies
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There is nothing preventing you from simulating the entire wind tunnel with obstacles in it. What is it that you really try to achieve, because you also mention FSI. |
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Thank you for your response - I will try again with finer mesh and increased distance between inlet and outlet. |
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Look for instance at pictures of the CFD mesh around the Ahmed body or studies on the wind tunnel wall effect to see some examples. But does it need to be inside a wind tunnel? Is your goal to look at the effects of wind tunnel walls on the lift and drag of the object? If not, then you're better of simulating your object in a large sphere where the edge of the sphere is modeled as 'far field'. |
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I'm only interested in determining wind load (pressure) on walls for buildings. With my limited knowledge of SU2 I assumed the way to do this is to create a virtual wind tunnel with inlet and outlet, and the obstacle in the center of it. I'd be interested in understanding how the sphere setup would work - could you perhaps be so kind as to point me to a relevant example? Thank you for the info! |
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For instance in this tutorial we do something like that: https://su2code.github.io/tutorials/Turbulent_ONERAM6/ |
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Thank you so much, this really helped! |
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For instance in this tutorial we do something like that: https://su2code.github.io/tutorials/Turbulent_ONERAM6/
You actually do not want to have the walls of the windtunnel in the way, so you increase the cell size as you move further away from the body of interest and far away from the body you place a farfield condition, which is basically the undisturbed flow velocity.