| Related citation: | Xingwang Tian,Kun Zhang,Feng Liu,Ping Wang,Shiming Xu.Characteristics of Convection Heat Transfer in Power-Law Fluid Saturated Porous Media Channel[J].Journal of Harbin Institute Of Technology(New Series),2022,29(2):52-61.DOI:10.11916/j.issn.1005-9113.2020073. |
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| Author Name | Affiliation | | Xingwang Tian | School of Ocean and Civil Engineering, Dalian Ocean University, Dalian 116023, China | | Kun Zhang | School of Ocean and Civil Engineering, Dalian Ocean University, Dalian 116023, China | | Feng Liu | School of Ocean and Civil Engineering, Dalian Ocean University, Dalian 116023, China | | Ping Wang | School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China | | Shiming Xu | School of Energy and Power Engineering，Dalian University of Technology，Dalian 116024,China |
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| Abstract: |
| Considering Brinkman-Forchheimer extended Darcy flow and local thermal non-equilibrium effect, a general model of forced convection with viscous dissipation in power-law fluid saturated porous media channel was established. The dimensionless temperature profiles and Nusselt number were numerically solved using the classical fourth-order Runge Kutta method under a constant heat flux boundary condition. The conclusion showed that the fluid-solid temperature distributions were significantly affected by dimensionless Bi, k, Da, Br, and F, and the effects of power-law indexes on convection heat transfer characteristics were also non-negligible. |
| Key words: viscous dissipation power-law uid porous medium thermal non-equilibrium numerical simulation |
| DOI：10.11916/j.issn.1005-9113.2020073 |
| Clc Number:TK121/TE312[KG*2] |
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| Descriptions in Chinese: |
| 幂律流体饱和多孔介质通道内对流换热特性 田兴旺1，张琨1，刘峰1，王平2，徐士鸣2 （1.大连海洋大学 海洋与土木工程学院，辽宁 大连 116023；2.大连理工大学 能源与动力工程学院，辽宁 大连 116024） 摘要：基于Darcy-Brinkman-Forchheimer流动模型和局部非热平衡模型，考虑黏性耗散效应的影响，建立了幂律流体在多孔介质通道内流动传热的一般模型。推导出无量纲速度分布和流、固温度分布的计算表达式，并在恒热流边界条件下，利用经典的四阶Runge-Kutta法进行了自编程序的数值求解。模拟结果表明，无量纲的相间传热系数Bi、有效导热系数比k、达西数Da，布林克曼数Br、综合惯性参数F等表征参数对无量纲流、固温度分布有着较大的影响，同时发现不同幂律指数的流体对流动传热特性也有着重要的影响。 关键词：粘性耗散；幂律流体；多孔介质；局部非热平衡；数值模拟 |
