Variable time step matching in fluid flow algorithm

摘要

A method of modifying a Lattice Boltzmann algorithm to perform a variable simulation time step on each Lattice Boltzmann algorithm step, the method comprising specifying a reference time step as a largest time interval required between simulation steps, determining an interpolation factor as the required time step divided by said reference time step and interpolating from a previous simulated density to obtain an intermediate density corresponding to the simulation at the required time.