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管外包覆多孔介质强化换热的数值研究
  • ISSN号：0253-231X
  • 期刊名称：《工程热物理学报》
  • 时间：0
  • 分类：TK124[动力工程及工程热物理—工程热物理;动力工程及工程热物理—热能工程]
  • 作者机构：[1]西安交通大学动力工程多相流国家重点实验室
  • 相关基金：国家自然科学基金创新群体项目(No.51121092);国家自然科学基金重点项目(No.51236007)
作者： 王会[1], 郭烈锦[1], 叶晶[1], 陈康[1], 刘威志[1]
关键词： 多孔介质, 强化换热, 强制对流换热, 数值模拟
中文摘要：

本文对管外包覆多孔介质的无限长圆管绕流的流场和温度场进行数值模拟,研究了多孔介质层的无量纲厚度ep,达西数Da以及雷诺数Re对流动和强制对流换热特性的影响。研究结果表明,管外包覆多孔介质后的强制对流换热效果明显强于光管条件下的效果,换热增强了2.85.4倍;壁面平均努塞尔数Nu随ep和Re的增大而增大,随Da的增大而减小;管壁处的流动阻力系数CD随ep的增大而增大,随Da的减小,先增大后减小,当Da小于1×10-5时,阻力系数保持不变。

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期刊信息
  • 《工程热物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国工程热物理学会 中国科学院工程热物理研究所
  • 主编：徐建中
  • 地址：北京2706信箱
  • 邮编：100080
  • 邮箱：xb@mail.etp.ac.cn
  • 电话：010-62584937
  • 国际标准刊号：ISSN：0253-231X
  • 国内统一刊号：ISSN：11-2091/O4
  • 邮发代号:2-185
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:21026