مشخصات پژوهش

The free energy-based lattice Boltzmann (FEB-LB) model is a very powerful method and is fully consistent with Maxwell’s equal-area construction, especially for low temperature conditions. Drawbacks of this model are its massive amounts of calculations and large computation time (i.e., iteration number), therefore it is often executed on supercomput- ers or parallel computing systems. In this paper, the three-dimensional FEB-LB model has been optimized using the Runge-Kutta fourth-order method. It is shown that using the fourth-order Runge–Kutta method, the computation time is decreased about four times. In addition, in the present work, using the optimized FEB-LB model, the effects of surface tension and interface width on spurious velocities in the liquid–gas interface have been investigated.