Performance Optimization of 3D Lattice Boltzmann Flow Solver on a GPU

Algorithm 1

Algorithm of LBM.

()  Step  : Initialize macroscopic quantities, density , velocity ,

        the distribution function , and the equilibrium function

()  Step  : Streaming phase: move in the direction of

()  Step  : Calculate density and velocity from using Equations  (3) and (4)

()  Step  : Calculate the equilibrium function using Equation (5)

()  Step  : Collision phase: calculate the updated distribution function

        using Equation (2)

()  Repeat Steps   to   -times