| 库特（Couette）剪切流准确解的一般形式 |
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| 引用本文： | 韩德才,周铁农,潘永阁.库特（Couette）剪切流准确解的一般形式[J].高压物理学报,2000,14(3):229-234. |
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| 作者姓名： | 韩德才 周铁农 潘永阁 |
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| 作者单位： | 燕山大学,河北秦皇岛,066004 |
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| 摘 要： | 从N-S方程出发，得到了轴对称异型断面管纯剪切流动速度分布的一般解，进而推出了纯剪切流动有限宽度矩形断面管的速度分布和流量计算公式，证明了库特剪切流是有限宽度矩形断面管当宽度趋向无穷大时的一种特例。并对库特剪切流流量的计算误差进行了分析，给出了该公式的适用范围，同时对有限宽度矩形断面管剪切流公式进行了曲线拟合，得到了便于工程使用的流量计算公式。
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| 关 键 词： | 库特剪切流 准确解 速度分布 |
| 收稿时间： | 2000-03-27; |
| 修稿时间： | 2000-03-27 |
AN EXACT SOLUTION FOR COUETTE SHEAR FLOW |
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| HAN De-cai,ZHOU Tie-nong,PAN Yong-ge.AN EXACT SOLUTION FOR COUETTE SHEAR FLOW[J].Chinese Journal of High Pressure Physics,2000,14(3):229-234. |
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| Authors: | HAN De-cai ZHOU Tie-nong PAN Yong-ge |
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| Institution: | Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | An exact solution of velocity distribution for Couette shear flow in a non circular conduit with axial symmetry section is obtained in this paper.From the solution,velocity and flow rate for the rectangular section conduit with finite width are obtained,and it is concluded that Couette shear flow is just a special example when the width is just infinite in the rectangular section conduit flow.Further,we analyzed the error of the solution,and the range in which the formula is suitable is given.An appropriate formula which is easy to use in engineering was obtained based on the results. |
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| Keywords: | Couette shear flow exact solution velocity distribution |
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