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带导热壁面的三角形多孔腔体对流传热研究 被引量：1

INVESTIGATION OF CONVECTIVE HEAT TRANSFER IN TRIANGULAR POROUS ENCLOSURE WITH CONDUCTIVE SOLID WALL AT THE BOTTOM
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摘要 采用有限元方法,对底壁面为导热固体壁面的三角形多孔介质腔体内的对流传热进行了数值模拟,分析了固体壁面与多孔介质导热系数之比、固体壁面与腔体水平长度之比、瑞利数、腔体高宽比等特征参数对交界面平均传热系数的影响.结果表明,薄壁面时平均传热系数随固体壁面与腔体水平方向长度之比的增加先显著增大再呈缓慢增大趋势,并逐渐趋于常数,但随着导热壁面厚度的增加,上述增长趋势变缓. Steady-state natural convection in a two-dimensional triangular cavity filled with a porous medium is numerically studied using the finite element method in this article. The governing parameters considered are the Rayleigh number, the width of the solid wall, the thermal conductivity radio between solid and porous media and the aspect ratio of the enclosure. The results are presented to show effects of these parameters on the heat transfer at the interface.
作者 王丽 陈宝明 李太禄
机构地区 山东建筑大学
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2010年第10期1713-1716,共4页 Journal of Engineering Thermophysics
基金 国家自然科学基金资助项目(No.1076086)
关键词 三角形多孔腔体 壁面导热 对流传热 triangular porous cavity conductive wall convective heat transfer
分类号 TK124 [动力工程及工程热物理—工程热物理]
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参考文献9

  • 1Kavlany M. Principles of Heat Transfer in Porous Media [M]. 2ed edn. New York: Springer, 1995.
  • 2Nied D A, Bejan A. Convection in Porous Media [M]. 3rd. edn. New York: Springer, 2006.
  • 3Mbaye M, Bilgen E, Vasseur P. Natural Convection Heat Transfer in an Inclined Porous Layer Boarded by a Finite- Thickness Wall [J]. Int. J. Heat Fluid Flow, 1993, 14(3): 284-291.
  • 4Baytas A C, Liaqat A, Groan T, et al. Conjugate Natural Convection in a Square Porous Cavity [J]. Heat and Mass Transfer, 2001, 37(4/5): 467-473.
  • 5CHANG W J, LIN H C. Natural Convection in a Finite Wall Rectangular Cavity Filled with an Anisotropic Porous Medium [J]. Int. J. Heat Mass Transfer, 1994, 37(2): 303-312.
  • 6CHANG W J, LIN H C. Wall Heat Conduction Effect on Natural Convection in an Enclosure Filled with a NonDaxcian Porous Medium [J]. Numer. Heat Transf. Part A, 1994, 25(6): 671484.
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同被引文献8

  • 1Baoming CHEN, Li WANG, Fang LIU, et al. Effect of Mesoscopic Structure of Interface on Heat and Mass Transfer in a Partially Porous Cavity [ A ]. ASME 2009 2nd Micro/Nanoscale Heat & Mass Transfer Internation- al Conference,2009.
  • 2Kavalany M. Principles of Heat Transfer in Porous Media [ M]. 2ed edn. New York: Springer, 1995.
  • 3G. S. Beavers, D. D. Joseph, Boundary conditions at a naturally permeable wall [ J ]. J. Fluid Mech, 1967,30 : 197 - 207.
  • 4R. Bennacer, H. Beji, A. A. Mohamad. Double Diffusive Convection in a Vertical Enclosure Inserted with Two Saturated Porous Layers Confining a Fluid Layer [ J ]. Int. J. Therm. Sci,2003,42(2) :141 - 151.
  • 5Nied D A,Bejan A. Convection in Porous Media[M]. 3rd. edn. New York: springer,2006.
  • 6iA. M. J Davis,D. F. James,The slip velocity at the edge of a porous medium:effect of interior resistance and in- terface curvature [ J ]. Transport in porous media, 2003, 53 : 175 - 196.
  • 7刘芳,陈宝明,王丽.多孔介质对封闭腔体内对流传热传质的影响[J].山东大学学报（工学版）,2011,41(1):145-150. 被引量：7
  • 8左远志,杨晓西,丁静.多孔介质中熔融盐流体高温斜温层蓄热的热特性[J].工程热物理学报,2014,35(2):305-310. 被引量：4

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工程热物理学报
2010年 第10期

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