Numerical investigation of the effect of a splitter plate on forced convection in a two dimensional channel with an inclined square cylinder

► Effect of a splitter on forced convection around an inclined square cylinder. ► The lattice Boltzmann method with curved boundaries for flow and thermal fields. ► Minimum drag coefficient and Nusselt number occurs at specific distance of splitter. ► Sudden jump is seen as the gap ratio exceeds a specific value. ► The results showed that there exists an optimal location exist for the splitter plate.