Solid cell/nodes in Amrex without using Embedded Boundary functions #2334
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LordOfBunnies
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What EB information do you need? If it's just whether a node is inside or outside a solid body, you can save that information in an |
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I'm currently writing a Lattice Boltzmann Method flow solver in Fortran 95. The code is node based, making it a little more fun.
I'm wondering about a way to specify solid geometry without using the Embedded Boundary system already in Amrex. My code is able to determine whether a node is within a solid. It takes .stl files or .cgns files with tessellated surfaces. However, Amrex does not know if the node is a fluid or solid. I figure this may end up causing problems when using things like average_down, fill_patch, etc. when it's near the wall.
I've been reading through the embedded boundary system, but it doesn't look like it can handle generic geometry. I could certainly be wrong.
Is there a way to inform Amrex which nodes are solid/fluid/etc.? Can the embedded boundary system be used with generic geometry? Is there a way to work around the system and directly tell the EB system which ones are which?
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