Thermalized LB: test 4 rel time model velocity and pressure fluctuations
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from lbmpy.relaxationrates import relaxation_rate_from_lattice_viscosity, relaxation_rate_from_magic_number
def create_scenario(domain_size, temperature=None, viscosity=None, seed=2, target='cpu', openmp=4, num_rel_rates=None):
return LatticeBoltzmannStep(periodicity=(True, True, True), domain_size=domain_size, compressible=True, stencil='D3Q19', collision_rule=cr, optimization={'target': target, 'openmp': openmp})