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孔隙率和渗透率对LHP主芯性能影响研究
引用本文:任川,吴清松. 孔隙率和渗透率对LHP主芯性能影响研究[J]. 工程热物理学报, 2007, 28(4): 634-636
作者姓名:任川  吴清松
作者单位:中国科技大学热科学和能源工程系,安徽,合肥,230026;中国科技大学热科学和能源工程系,安徽,合肥,230026
基金项目:中国空间技术研究院总体部项目
摘    要:
毛细多孔芯的结构参数对环路热管(LHP)主芯中的流动和传热有着重要影响.通过发展一个综合考虑了热传导、对流和蒸发多种传热效应的模型,以及利用数值模拟易于独立改变参数的特点,研究了孔隙率和渗透率这对参数组合对LHP主芯内部流场和性能的影响.模拟结果在一定范围内是合理的,且对于LHP实验研究和工程应用具有一定的参考意义.

关 键 词:环路热管  毛细多孔芯  传热  孔隙率  渗透率
文章编号:0253-231X(2007)04-0634-03
修稿时间:2007-01-16

EFFECT OF POROSITY AND PERMEABILITY ON PERFORMANCES OF LOOP HEAT PIPE'S WICK
REN Chuan,WU Qing-Song. EFFECT OF POROSITY AND PERMEABILITY ON PERFORMANCES OF LOOP HEAT PIPE'S WICK[J]. Journal of Engineering Thermophysics, 2007, 28(4): 634-636
Authors:REN Chuan  WU Qing-Song
Abstract:
Porous structure parameters have strong influence on the phenomenon of flow and heat transfer in the capillary porous wick of a loop heat pipe.Based on this mathematical model in which effects of heat conduction,convection and evaporation are adequately considered,the effect of porosity and permeability on the flowfield in LHP's wick and performances of LHP's wick is numerically investigated by changing independently parameters.These results obtained in this paper are reasonable and can be as the reference to experiments and engineering application of LHPs.
Keywords:loop heat pipe  capillary porous wick  heat transfer  porosity  permeability
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