| 变截面管换热器的流体力学性能研究 |
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| 引用本文： | 李雪梅,江楠,岑汉钊.变截面管换热器的流体力学性能研究[J].仲恺农业技术学院学报,2005,18(2):28-31. |
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| 作者姓名： | 李雪梅 江楠 岑汉钊 |
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| 作者单位： | 1. 仲恺农业技术学院,机电工程系,广东,广州,510225
2. 华南理工大学,工业装备与控制工程学院,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金资助项目(970535). |
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| 摘 要： | 根据流体力学的基本理论，建立了变截面管束的理论计算模型，应用当量直径的概念和叠加原理，推导出变截面管束管外流道中的流速分布和压力降的计算公式，为今后进一步提高变截面管换热器的传热和阻力性能提供理论参考和对比依据。
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| 关 键 词： | 变截面管 当量直径 叠加原理 |
| 文章编号： | 1006-0774(2005)02-0028-04 |
| 修稿时间： | 2005年2月23日 |
Study on the hydrodynamic performance of heat exchanger with variable cross-section tube bundle |
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| LI Xue-mei,JIANG Nan,CEN Han-zhao.Study on the hydrodynamic performance of heat exchanger with variable cross-section tube bundle[J].Journal of Zhongkai Agrotechnical College,2005,18(2):28-31. |
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| Authors: | LI Xue-mei JIANG Nan CEN Han-zhao |
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| Abstract: | A theoretical calculation model of variable cross-section tube bundle was put forward based on the fundamental theory of hydrodynamics. According to the concept of equivalent diameter and the superimposition principle, the calculation equations of flow velocity as well as the pressure drop of variable cross-section tube bundle were deduced, which provides reference for the improvement of heat transfer performance and hydrodynamic resistance variable cross-section heat exchanger. |
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| Keywords: | variable cross-section tube equivalent diameter superimposition principle |
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