| 空气在立管外螺旋流动数值模拟及实验研究 |
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| 引用本文： | 陈姝.空气在立管外螺旋流动数值模拟及实验研究[J].河南科学,2010,28(6):725-727. |
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| 作者姓名： | 陈姝 |
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| 作者单位： | 仲恺农业工程学院,机电工程学院,广州,510225;华南理工大学,电力学院,广州,510640 |
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| 基金项目： | 教育部重点实验室华南理工大学"传热与节能重点实验室"开放基金支持 |
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| 摘 要： | 实验研究了空气在立管外螺旋流动的传热和流阻性能,结果为空气在立管外螺旋流动的对流换热系数是空气横掠单管的2～3倍,并利用模拟软件PHOENICS对立管外空气流动进行了数值模拟,将其与实验结果进行分析比较,误差低于10%,证明是实验方法的有力补充并对此进行机理分析,这可为设计高效节能的立式螺旋隔板换热器提供参考.
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| 关 键 词： | 螺旋流动 实验 数值模拟 |
The Simulation and Experimental Research on Air Helical Flow outside Upright-Tube |
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| Chen Shu.The Simulation and Experimental Research on Air Helical Flow outside Upright-Tube[J].Henan Science,2010,28(6):725-727. |
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| Authors: | Chen Shu |
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| Institution: | Chen Shu (1. College of Electromechanical Engineering,Zhongkai University of Agriculture and Technology,Guangzhou 510225,China; 2. School of Electric Power,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | The heat transfer and flow resistance of air flowing helically outside the upright-tube is researched by experiment. The convection heat-transfer coefficient of air helical flowing outside upright-tube is 2～3 times to that of air cross-flowing. The air flowing distribution outside upright-tube is simulated with the help of software PHOENICS and the result is contrasted and analyzed with the experimental result. The error is less than 10 %. It is proved to be the powerful supplement and the mechanism is analyzed. It could provide the referrence for design on the high efficient energy-saving upright helical baffle heat exchanger. |
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| Keywords: | helical flowing experiment numerical simulation |
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