Conjugate heat transfer study of backward-facing step flow – A benchmark problem

The conjugate heat transfer characteristics are studied for backward-facing step flow problem. Alternating direction implicit (ADI) method is used to find the steady state results for hydrodynamic solution using stream function–vorticity formulation. The energy equation in the fluid region and in the solid region are solved simultaneously. The conjugate effects are studied in connection with four parameters viz. Re, Pr, k and b. Effect of four parameters on local Nusselt number, interface temperature and average Nusselt number are presented in detail. The results are compared with non-conjugate case.