Is the equidistance layer similar to the inflation layer? What's the recommended setting for equidistance layer for a Solidworks flow simulation of a wing?
It's similar, but for SWFS it's not used for the same purpose. Instead, the solver uses a two-scale wall function model to capture the boundary layer when any mesh is employed. The equidistant layer was probably through customer request. Use it to capture the flow close to the geometry, if you wish.
Here is the result of 1 layer, 2 cuts at 1mm away from the body. The level 3 cells at the trailing edge is a result of the advanced refinement setting for curved bodies at 15°; it could've gone to level 4 refinement, if needed, but didn't because it was already less than 15°.
How do you determine the angle?
Also, how do you know how far from the surface the equidistance should be set?
>> How do you determine the angle? <<
Seemed about the right value to use. If I didn't like the result, then I would change it and remesh.
>>Also, how do you know how far from the surface the equidistance should be set?<<
Just test it out and see what happens. If it doesn't give you something that you wanted, then do a little trial and error.
Sorry for being vague, but I have many years of working with SWFS, and much of it I learned from trying and I gained my experience. I recommend the same for you.
The equidistant mesh refinement automatically calculates the geometry of the selected face. You will need to run multiple iterations and continue to further increase your mesh refinements and adjust offsets until convergence is achieved. Create a goal in the study for a property that you are looking to solve for and track that in each study until you have confidence in the results.
I don't have a lot of time to do an indepth mesh convergence. What would be sensible starting points?
See attached for examples.
Is there a formula you can use to calculate the angle?
No formula. Just use down to the angle you want to make sure that the mesher captures. Depends on how fine you want/need to capture the geometry for the set problem. To begin, I would just use the default value that the software determines.
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