LATTICE BOLTZMANN SIMULATION OF SOLID PARTICLES SUSPENDED IN FLUID

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