A GPU-resident method uses local ray casting through spatial bins to voxelize and refine around stationary triangle meshes in forest-of-octrees grids, supporting accurate interpolated bounce-back boundaries for LBM with modest overhead.
Calhoun, A cartesian grid method for solving the two-dimensional streamfunction-vorticity equations in irregular regions, Journal of Computational Physics 176 (2) (2002) 231–275
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GPU-native Embedding of Complex Geometries in Adaptive Octree Grids Applied to the Lattice Boltzmann Method
A GPU-resident method uses local ray casting through spatial bins to voxelize and refine around stationary triangle meshes in forest-of-octrees grids, supporting accurate interpolated bounce-back boundaries for LBM with modest overhead.