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Lattice Boltzmann voxelization for a patient‐specific aorta geometry. a: Blocks are for parallelization and are distributed between processors. Each block normally contains between 1000 to 10,000 grid cells. b: The boundaries are fitted by taking the exact distances along the 19 paths from each voxel which is inside the computational domain and close to the wall. c: Streamline visualization of the simulated velocity.
