Abstract:
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.
下载:
