diff options
Diffstat (limited to 'boltzgen/lbm/lattice/D3Q19.py')
| -rw-r--r-- | boltzgen/lbm/lattice/D3Q19.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/boltzgen/lbm/lattice/D3Q19.py b/boltzgen/lbm/lattice/D3Q19.py new file mode 100644 index 0000000..e9e6eec --- /dev/null +++ b/boltzgen/lbm/lattice/D3Q19.py @@ -0,0 +1,18 @@ +from sympy import Matrix, Rational, sqrt + +d = 3 +q = 19 + +c = [ Matrix(x) for x in [ + ( 0, 1, 1), (-1, 0, 1), ( 0, 0, 1), ( 1, 0, 1), ( 0, -1, 1), + (-1, 1, 0), ( 0, 1, 0), ( 1, 1, 0), (-1, 0, 0), ( 0, 0, 0), ( 1, 0, 0), (-1,-1, 0), ( 0, -1, 0), ( 1, -1, 0), + ( 0, 1,-1), (-1, 0,-1), ( 0, 0,-1), ( 1, 0,-1), ( 0, -1,-1) +]] + +w = [Rational(*x) for x in [ + (1,36), (1,36), (1,18), (1,36), (1,36), + (1,36), (1,18), (1,36), (1,18), (1,3), (1,18), (1,36), (1,18), (1,36), + (1,36), (1,36), (1,18), (1,36), (1,36) +]] + +c_s = sqrt(Rational(1,3)) |