Hello, is it possible in SolidWorks to use Fluid Subdomains to specify regions of different mesh resolutions in Flow Simulation? I know you can do this with Local Initial mesh, but this seems to only work very close to surfaces, or am I mistaken?
Refinements can only be done at the global level or based on SolidWorks geometry (face, edge, vertex, body....etc).
The workaround would be to build a component that is equivalent to the fluid subdomain region. Save your assy as a part. Draw a large solid cube overtop of it. Use insert > feature > combine and delete your assembly from the cube. You'll be left with bodies that are the equivalent of the fluid regions. Mate that part into your assembly. Use component control to turn them off from a "solid" perspective and use them as local mesh controls.
That you, I will see if I can get this to work.
Also, within Flow Simulation, under Check Geometry, there is an option to save the fluid domain as a solid body. This will convert the fluid regions into a solid in one step, and should be ready to merge into your model. I've never tried to merge the 'solid fluid' personally, so please post your experience afterwards.
Rich, that's a good one.
I am sorry for taking so long, but I've tried exporting the fluid domain and then reinserting it. The Local Mesh didn't seem to have an effect, it seems as though turning off the exported solid nulifies the mesh. I simply went into Component Control and disabled the solid, I didn't see an option to set is as fluid, or anything similar.
you don't need to set it as a fluid, flow simulation automatically finds fluid volumes. When you use component control to disable it, you're telling the software to ignore it as a solid so that you can use it for other means (local initial mesh...etc).
I suspect the reason your initial mesh settings aren't having an influence on the region is because you aren't adding enough cells or you're hit the refinment limit for your basic mesh.
First thing I'd try, go to manual settings and choose to refine fluid cells. Increase it by 1 or 2 levels a couple of times and see if that allows you to improve the mesh. You may also want to try partial cells.
If that doesn't work. Improve the basic mesh first through the initial mesh settings.
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