Double constricted channel for laminar flow and heat transfer based on double MRT-LBM

This paper focuses mainly on the investigation of the fluid flow and convective heat transfer inside a two-dimensional double constricted channel employing the Lattice Boltzmann Method with multiple relaxation times (LBM-MRT). To describe the fluid behavior and the heat transfer, a detailed study was performed to interpret the effect of the constriction part and the Reynolds number variation using the D2Q9 and the D2Q5 model. A detailed study was performed to interpret the effect of the constriction part and the Reynolds number variation. The results are presented in the form of streamlines, isotherms, and averaged Nussel numbers.