Numerical Simulation of Convective Heat Transfer in Metal Foam Filled Pipes

李盈海 1; 2; 陶文铨 1; 孙东亮 1; 赵长颖 1

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Numerical Simulation of Convective Heat Transfer in Metal Foam Filled Pipes

更新时间：2025-12-08

- Numerical Simulation of Convective Heat Transfer in Metal Foam Filled Pipes
- Vol. 42, Issue 3, Pages: 261-264(2008)
- 作者机构：
  
  1. 西安交通大学动力工程多相流国家重点实验室,西安,710049
  2. 天华化工机械及自动化研究设计院,兰州,730060
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK124
- Online First：10 March 2008，
  
  Published：2008
- 稿件说明：
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李盈海 1, 2, 陶文铨 1, et al. Numerical Simulation of Convective Heat Transfer in Metal Foam Filled Pipes[J]. 2008, 42(3): 261-264.
DOI：

李盈海 1, 2, 陶文铨 1, et al. Numerical Simulation of Convective Heat Transfer in Metal Foam Filled Pipes[J]. 2008, 42(3): 261-264. DOI：

摘要

对空气在金属泡沫管内的强制对流换热进行了二维数值模拟.动量方程采用Brinkman-Forchheimer扩展达西模型

能量方程采用考虑流体和固体局部不平衡的二方程模型

并用金属泡沫方形通道的试验数据验证了程序的正确性.模拟结果表明:金属泡沫管的努塞尔数随孔隙率的减小或孔密度的增加而增大

且随流体和固体导热系数比值的减小而增大; 金属泡沫管的强化换热效果十分明显

但其压降远大于光管.数值模拟结果与相关文献的结果符合较好.

Abstract

2D convective heat transfer enhancement in metal foam filled pipe is numerically simulated. The momentum equation is formulated based on the Brinkman-Forchheimer extended Darcy model

and the energy equations for both solid and fluid are established following the two-equation non-equilibrium model. The computational code is validated by the experimental data from metal foam filled channel. The numerical results show that the Nusselt number increases when porosity decreases or pore density increases

the Nusselt number also rises with the decreasing thermal conductivity ratio of fluid to solid. Metal foam filled pipe enables to enhance the heat transfer greatly but with a more remarkable pressure drop. The numerical result agrees well with the published literatures.

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references

CALMIDI V V, MAHAJAN R L. Forced convection in high porosity metal foams [J]. ASME Journal of Heat Transfer, 2000, 122(3): 557-565.

ZHAO C Y, KIM T, LU T J, et al. Thermal transport in high porosity cellular metal foams [J]. Journal of Thermophysics and Heat Transfer, 2004, 18(3): 309-317.

LU W, ZHAO Changying, TASSOU S A. Thermal analysis on metal-foam filled heat exchangers, part I: metal-foam filled pipes [J]. International Journal of Heat and Mass Transfer, 2006, 49(15/16): 2751-2761.

VAFAI K, TIEN C L. Boundary and inertia effects on flow and heat transfer in porous media [J]. International Journal of Heat and Mass Transfer, 1981, 24(2): 195-203.

陶文铨.数值传热学[M].2版. 西安: 西安交通大学出版社, 2002: 207-231.

LI Z Y, TAO W Q. A new stability-guaranteed second-order difference scheme [J]. Numerical Heat Transfer: B, 2002, 42(4): 349-365.

KAYS W M, CRAWFORD M E, WEIGAND B. 对流传热与传质[M]. 陈熙,翟殿春,译.北京: 科学出版社,1986: 65, 104.

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