11 lines
625 B
Diff
11 lines
625 B
Diff
--- a/src/CelerisLab/lbm/refinement_stepper.py
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+++ b/src/CelerisLab/lbm/refinement_stepper.py
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@@ -39,6 +39,7 @@
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velocities are in coarse lattice units (dx=dt=1). Independent local copies
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are projected at fine cell centers. Their complete stencil must be active
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and disjoint from the actual two-hop transfer footprint.
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+ These use the edge/cell-center frame (coarse centers I+.5), whereas ordinary Simulation objects use the integer-node frame.
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``initialize(coarse_g, fine_g)`` accepts physical Q-major (9,ny,nx) arrays
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already in postcollision phase. It does not collide or build channel flags.
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