| 波纹管内的流动与传热强化研究 |
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| 引用本文： | 肖金花,钱才富,黄志新,安维峥.波纹管内的流动与传热强化研究[J].北京化工大学学报(自然科学版),2006,33(3):68-72. |
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| 作者姓名： | 肖金花 钱才富 黄志新 安维峥 |
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| 作者单位： | 北京化工大学机电工程学院,北京,100029;北京化工大学机电工程学院,北京,100029;北京化工大学机电工程学院,北京,100029;北京化工大学机电工程学院,北京,100029 |
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| 摘 要： | 通过数值模拟和实验验证考查了流体在波纹管内的流动与传热情况，研究了不同的流体雷诺数、波形及管径大小对波纹管强化传热性能的影响，探讨了其强化传热机理。研究发现，在湍流范围内，波纹管的强化传热倍数达到相同条件下直管的1.78~3.10倍，且最佳强化效果出现在Re=10000附近；文中拟合出的考虑波形影响的波纹管内传热准则方程，对波纹管的工程设计和应用具有一定的指导意义。
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| 关 键 词： | 波纹管 数值模拟 实验验证 强化传热 准则方程 |
| 收稿时间： | 2005-10-18 |
| 修稿时间： | 2005年10月18日 |
Study of Fluid Flow and Heat Transfer in Corrugated Tubes |
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| XIAO Jin-hua,QIAN Cai-fu,HUANG Zhi-xin,AN Wei-zheng.Study of Fluid Flow and Heat Transfer in Corrugated Tubes[J].Journal of Beijing University of Chemical Technology,2006,33(3):68-72. |
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| Authors: | XIAO Jin-hua QIAN Cai-fu HUANG Zhi-xin AN Wei-zheng |
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| Institution: | College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Fluid flow and heat transfer in a corrugated tube have been numerically and experimentally studied. The influence of different Reynolds Number, wave shape and pipe diameter has been investigated. It was found that in the turbulent region, the average convection film coefficient in a corrugated tube is 1.78- 3.10 times that in a straight tube under the same conditions, and the highest heat transfer occurs when Re is about 10000. To facilitate engineering design and application of corrugated tube heat exchangers, a formula for the calculation of the average convection film coefficient of a fluid in a corrugated tube is also given. |
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| Keywords: | corrugated pipe numerical simulation experimental verification heat transfer intensification formula for heat transfer |
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