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前沿领域综述——多孔介质强制对流换热研究进展
Review on forced convection heat transfer in porous media
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摘要: 多孔介质的强制对流换热主要涉及渗流、对流换热、热弥散和热辐射等方面的内容,文中对这个儿个方面的田内外研究进展和发展趋势进行了逐·综述.同时对主要理论模型、实验研究和经验关联式进行了分类整理,总结了它们的特点、适用范围和局限性,并对主要研究成果进行了对比分析,指出了将来进一步研究的方向和难点所在.而且通过简化计算得到高温多孔介质冷却过程何时需要考虑辐射换热.所有这些对多孔介质的理论研究和工程应用都具有指导性的意义.Abstract: Forced convection heat transfer in porous medium is involved mainly with the seepage,convection heat transfer,thermal dispersion and thermal radiation.Their research statuses and development trends are reviewed in this paper.The primary theoretical models, experimental research and empirical correlations were systemized and their features,application range and limitation were summarized too.Furthermore,the future research area and the difficulty are presented on the convection heat transfer of porous medium according to the comparative analysis of the past research results.In addition,when the radiation heat transfer can be considered in the cooling process of high temperature porous medium is determined by the simphfing calculation.All of these will be helpful to the theoretic research and engineering application of the porous medium.
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