Passive Control Modelization of a Fluid Flow Coupled with Convective Heat Transfer around a Heated Square Cylinder by using the LBM-MRT

This work presents a numerical study on the passive control of a fluid flow coupled with convective heat transfer by using the lattice Boltzmann method. The study focuses on simulating the fluid flow and temperature distribution around a heated square cylinder controlled by three partitions and placed in a two-dimensional channel (Figure 1) at a fixed Reynolds number (Re =160). The addition of the partitions allows to control the vortex shedding, reduces the fluidic forces applied to the cylinder and improves the heat transfer characteristics around the square cylinder. The effects of the location and length of the partitions on the streamlines, isotherms and drag force are studied. The results obtained show that the inclusion of partitions leads to a 51.23% reduction in the drag coefficient and allows significant heat exchange.