Modeling of the viscous fluid flow around rotating circular cylinders with the lattice Boltzmann method at moderate Reynolds numbers

Abstract

In this work the task of the viscous fluid flow around both a circular cylinder which rotates with the constant speed in a plane channel and a lattice of rotating cylinders has been numerically solved by the lattice Boltzmann method. The method of setting the boundary conditions on the rotating cylinder boundary has been developed and tested. The comparison of obtained results with known numerical results obtained by other numerical methods has been made. Both stationary and periodic solutions have been investigated. The dependence of the computational grid resolution on the cylinder rotation speed for the predefined accuracy has been shown.