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Quantitative analysis of flow and heat transfer in graphite foam
Author(s):
TANG Jing-wen
,
ZHANG Xin-ming
,
XI Lei-peng
Pages:
625
-
628
Year:
2009
Issue:
6
Journal:
Journal of Chongqing University(Natural Science Edition)
Keyword:
石墨泡沫
;
多孔材料
;
达西定律
;
容积导热系数
;
Abstract:
通过对石墨泡沫材料内部微几何结构的分析,建立了流动和导热的数值分析模型.计算并分析了材料孔隙内压力梯度与流速的关系,证明了孔内压力梯度与流速的二次方关系,渗透率的计算结果与相关文献的理论分析和实验结果吻合较好.研究了在有流体通过孔隙并与孔壁有对流换热的情况下,流速和孔隙率对石墨泡沫材料容积导热系数的影响.
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