| 圆直管内层流振荡流的摩擦特性 |
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| 引用本文： | 叶晓峰,张建武.圆直管内层流振荡流的摩擦特性[J].应用力学学报,2003,20(3):43-46. |
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| 作者姓名： | 叶晓峰 张建武 |
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| 作者单位： | 上海交通大学,上海,200030 |
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| 摘 要： | 研究了在谐波压力梯度作用下圆管内层流振荡流的流速分布形态、断面平均流速、驱动功率损耗及摩擦特性，并对管内单方向定常流的范宁摩擦系数公式进行扩展，建立了用于管内振荡流的摩擦系数计算式。摩擦系数理论计算结果与实验显示了较好的一致性。
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| 关 键 词： | 圆直管 摩擦特性 层流 振荡流 流速分布 摩擦系数 非定常流 谐波压力梯度 |
| 文章编号： | 1000-4939(2003)03-0043-04 |
| 修稿时间： | 2002年5月14日 |
Friction Characteristics of Oscillatory Laminar Flow in Straight Tube |
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| Ye Xiaofeng Zhang Jianwu.Friction Characteristics of Oscillatory Laminar Flow in Straight Tube[J].Chinese Journal of Applied Mechanics,2003,20(3):43-46. |
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| Authors: | Ye Xiaofeng Zhang Jianwu |
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| Abstract: | The profile of axial velocity, cross-sectional-mean velocity, power dissipation and frictional characteristics of oscillatory tube flow arisen by harmonic pressure gradient are investigated analytically. A formula for fanning frictional efficient of oscillatory tube flow is developed by expanding that for unidirectional steady tube flow. The theoretical results show a good agreement with that of experiments. |
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| Keywords: | oscillatory flow tube friction efficient |
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