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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 extended Darcy model. The effects of Reynolds number (0.5 ≤ Re ≤ 50), effective fluid-to-solid thermal conductivity ratio Γ (0.001 ≤ Γ ≤ 1.0) and Darcy number (103 ≤ 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.
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Hedongli Gongcheng/Nuclear Power Engineering
ISSN: 0258-0926
Year: 2009
Issue: 2
Volume: 30
Cited Count:
WoS CC Cited Count: 3
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 10
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