Some progress in the lattice Boltzmann method: Reynolds number enhancement in simulations

A newly proposed lattice Boltzmann algorithm is used to simulate flows with high Reynolds number. The new algorithm is not limited by the lattice Reynolds number which constrains all previous lattice Boltzmann models. Not only is the Reynolds number enhanced in the simulation using the new algorithm, but also is the numerical stability improved significantly. Numerical simulations of the flow in a 2_D symmetrical sudden expansion were conducted to demonstrate the effectiveness of the new algorithm.