Fish & Richardson P.C.
Lattice boltzmann collision operators enforcing isotropy and galilean invariance
A method comprising: simulating, in a lattice velocity set, movement of particles in a volume of fluid, with the movement causing collision among the particles; based on the simulated movement, determining relative particle velocity of a particle at a particular location within the volume, with the relative particle velocity being a difference between (i) an absolute velocity of the particle at the particular location within the volume and measured under zero flow of the volume, and (ii) a mean velocity of one or more of the particles at the particular location within the volume; and determining, based on the relative particle velocity, a non-equilibrium post-collide distribution function of a specified order that is representative of the collision.
Dassault Systemes Simulia Corp.
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Hudong Pradeep Raoyang
Chen Gopalakrishnan Zhang