A novel boundary condition for the simulation of the submerged bodies using lattice boltzmann method


Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University


In this study, we proposed a novel scheme for the implementation of the no-slip boundary condition in the
lattice Boltzmann method (LBM) . In detail , we have substituted the classical bounce-back idea by the direct immersed boundary specification . In this way we construct the equilibrium density functions in such a way that it feels the no-slip boundaries . Therefore , in fact a kind of equilibrium boundary condition is made . Results show that the proposed method presents also a faster solution procedure in comparison to the bounce-back scheme .