期刊文献+

金属泡沫内固-液相变数值模拟研究 被引量:6

Numerical Study of Solid-Liquid Phase Change in Metallic Foam
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摘要 本文利用多孔介质的体积平均模型,建立了金属泡沫内固-液相变的两方程数学物理模型,该模型考虑了熔化液态石蜡自然对流的影响、石蜡与泡沫局部非热平衡效应。模拟研究了熔化过程中不同泡沫孔隙率下液态石蜡内部的速度场、相界面位置随时间的变化规律,通过研究石蜡温度场和泡沫温度场的差异,证实了采用两方程模型的必要性。 Based on the volume-averaged model,the physical and mathematical model to describe the solid-liquid phase change in porous metallic foam was developed.The natural convection of liquid paraffin and local thermal non-equilibrium effect between paraffin and the metal matrix were taken into account.The results presented the velocity field,interface variation and the temperature deviation between paraffin and metal foam,which validated the necessity of the two-equation model.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2013年第1期141-144,共4页 Journal of Engineering Thermophysics
基金 国家自然科学基金(No.51176149 No.50736005) 国家重点基础研究发展计划(973项目)(No.2011CB610306)
关键词 相变材料 金属泡沫 熔化 两方程模型 phase change material metallic foam melting two-equation mode
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参考文献14

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同被引文献36

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  • 2杨秀,陈振乾.蓄冰球中填充泡沫铝的融化相变传热过程的数值模拟[J].化工学报,2008,59(S2):139-142. 被引量:8
  • 3程文龙,韦文静.高孔隙率泡沫金属相变材料储能、传热特性[J].太阳能学报,2007,28(7):739-744. 被引量:57
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