收稿日期: 2016-08-12
网络出版日期: 2018-06-27
基金资助
国家自然科学基金资助项目(11272198);国家自然科学基金资助项目(11572183)
Turbulent flow and heat transfer in a channel with porous media
Received date: 2016-08-12
Online published: 2018-06-27
张一凡, 刘财喜, 董宇红 . 多孔壁面槽道湍流中的流动阻力和传热[J]. 上海大学学报(自然科学版), 2018 , 24(3) : 378 -391 . DOI: 10.12066/j.issn.1007-2861.1871
Turbulent flow and heat transfer in a channel with two parallel porous walls are reported. The Darcy-Brinkman-Forcheimer (DBF) acting model based on volume averaged hypothesis is added to the Navier-Stokes equation to simulate the flow bounded by porous media. The effects of porosity and Darcy numbers on skin-friction drag as well as Nusselt numbers are studied. The results on statistical quantities for flow field and temperature field show that the skin-friction drag decreases as the porosity becomes larger, and the Nusselt numbers may increase leading to enhancement of heat transfer efficiency when the Darcy number increases.
Key words： porous media; wall-bounded turbulence; drag reduction; heat transfer
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