[1]吴锦京,曹侃,魏新利..螺旋槽管管内传热与流动性能的数值模拟研究[J].郑州大学学报(工学版),2013,34(02):32-36.[doi:10.3969/j.issn.1671-6833.2013.02.09]
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螺旋槽管管内传热与流动性能的数值模拟研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年02期
页码:
32-36
栏目:
出版日期:
2013-03-28

文章信息/Info

作者:
吴锦京曹侃魏新利.
丽水学院理学院,浙江丽水,323000, 河南省过程传热与节能重点实验室,河南郑州,450002, 郑州大学化工与能源学院,河南郑州,450001
关键词:
数值模拟 螺旋槽管 强化传热 场协同原理
DOI:
10.3969/j.issn.1671-6833.2013.02.09
摘要:
采用数值模拟方法对以空气为介质的7根螺旋槽管的传热及流阻性能进行了计算,并与圆形光滑管进行了比较.分析了螺旋槽管强化传热机理,发现其场协同程度得到改善是其传热得到强化的主要原因.同时还分析了管内Re数、槽深e、节距p以及滚球半径r对螺旋槽管换热与流阻性能的影响,结果表明:在相同流量下,节距一定时,槽深越深,换热效果越好,同时阻力也越大;槽深一定时,节距越小,流体边界层分离作用越明显,管内换热越强,流动阻力也随之增大;滚球半径对传热影响比较小,但是对流动阻力的影响却比较大.

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更新日期/Last Update: 1900-01-01