Numerical Study of Forced Convection in a Vertical Channel Filled with Heat-Generating Porous Medium

Steady laminar non-Darcian forced convection in a vertical channel filled with heat-generating porous medium is studied numerically by using the local thermal non-equilibrium model.The heat source generated by solid framework is uniform and kept constant;and the temperature of vertical walls is kept at constant temperature T₀.The flow inside porous medium is modelled by using Forchheimer-Brinkman ex-tended Darcy model.The effects of Reynolds number（0.5≤Re≤50）,effective fluid-to-solid thermal conduc-tivity ratio Γ（0.001≤Γ≤1.0）and Darcy number（10^-3≤Da≤10^-5）are analyzed in detail.It is found that,the effects of Re,Γ and Da are remarkable;at low values of Re and Γ,and at high value of Da,the effect of local thermal non-equilibrium is significant and the local thermal non-equilibrium model should be adopted for predicting the heat transfer characteristics exactly.