LATTICE BOLTZMANN SIMULATION OF SOLID PARTICLES SUSPENDED IN FLUID

The lattice Boltzmann method, an alternative approach to solving a flu id flow system, is used to analyze the dynamics of particles suspended in fluid. The interaction rule between the fluid and the suspended pa rticles is developed for real suspensions where the particle boundarie s are treated as no-slip impermeable surfaces. This method correctly a nd accurately determines the dynamics of single particles and multi-pa rticles suspended in the fluid. With this method, computational time s cales linearly with the number of suspensions, N, a significant advant age over other computational techniques which solve the continuum mech anics equations, where the computational time scales as N-3. Also, thi s method solves the full momentum equations, including the inertia ter ms, and therefore is not limited to low particle Reynolds number.