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Boundary Condition Help

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Old   August 11, 2018, 18:58
Default Boundary Condition Help
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Aero Freak
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Hello,

I am analyzing a curved plate geometry and was wondering about the boundary condition setup in Fluent.

I made a pressure outlet and a velocity inlet, but I'm a little confused about the rest of the walls except for the geometry. I do not want to see flow developing on these walls, would setting them to zero shear walls be correct?

Also is a zero shear wall practically the same as symmetry?
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Old   August 13, 2018, 11:43
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Lucky Tran
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Zero shear can work, but you probably need to do a sensitivity study if this is important to you. Having a wall there constrains the flow. You should also consider using a pressure outlet boundary or farfield pressure boundary condition, etc.

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Originally Posted by aerofreak1551 View Post
Also is a zero shear wall practically the same as symmetry?
If you are talking only about velocity then yes. But remember you can have zero-shear wall at a different temperature or zero-shear wall with species being transported across and so on.
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