| 高粘度流体在波纹板通道内的流动模型 |
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| 引用本文： | 师晋生. 高粘度流体在波纹板通道内的流动模型[J]. 过程工程学报, 2006, 6(6): 884-888 |
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| 作者姓名： | 师晋生 |
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| 作者单位： | 天津科技大学机械工程学院,天津,300222 |
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| 摘 要： | 对高粘度流体在波纹板通道内的流动进行了分析，对控制微分方程及边界条件作无量纲处理，引入流函数，采用摄动展开建立了近似分析模型，得到了流函数、速度及压力沿轴向变化的解析表达式，讨论了壁面波纹的波幅及波长对流动的影响，并根据比拟理论分析了波纹通道对传热的影响.
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| 关 键 词： | 高粘度 波纹壁面 流动 摄动展开 模拟 |
| 文章编号： | 1009-606X（2006）06-0884-05 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-10-102006-01-13 |
An Approximate Model of a High Viscosity Liquid Flowing inside a Wavy Plate Duct |
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| SHI Jin-sheng. An Approximate Model of a High Viscosity Liquid Flowing inside a Wavy Plate Duct[J]. Chinese Journal of Process Engineering, 2006, 6(6): 884-888 |
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| Authors: | SHI Jin-sheng |
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| Affiliation: | College of Mechanical Engineering, Tianjin University of Science&Technology |
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| Abstract: | A research of a high viscosity liquid flowing inside a wavy plate duct is carried out with a mathematic modeling. The governing equations with their boundary conditions are firstly non-dimensionalized. Then a dimensionless stream function is introduced. By perturbation expanding, an approximate model has been developed. Analytical expressions for stream function, velocity and pressure variations along the duct are obtained. The effects of the amplitude and wavelength of the wavy plate duct on the flow state are discussed. Meanwhile, a preliminary estimation based on analogy theorem of the beat transfer enhancement to the flow friction increase is made. |
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| Keywords: | highly viscosity , wavy surface flow perturbation expansion modeling |
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