| 水力光滑圆管临界雷诺数的确定 |
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| 引用本文： | 蔡一全,宫敬.水力光滑圆管临界雷诺数的确定[J].油气储运,2004,23(9):23-25. |
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| 作者姓名： | 蔡一全 宫敬 |
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| 作者单位： | 石油大学(北京) |
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| 摘 要： | 根据由Prandtle紊流混合长理论推导出的光滑圆管中紊流的速度分布和Nikuratse测得的圆管中紊流的速度剖面图确定的层流边层的区域范围,推导出层流边层厚度的计算公式,提出一个新的水力光滑圆管临界雷诺数计算模型.经试验数据验证,新计算模型确定的临界雷诺数与试验点符合很好.
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| 关 键 词： | 水力光滑管 临界雷诺数 计算模型 评价 确定 |
The Determination on the Critical Reynolds Number of the Smooth Pipe |
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| CAI Yiquan and GONG Jing.The Determination on the Critical Reynolds Number of the Smooth Pipe[J].Oil & Gas Storage and Transportation,2004,23(9):23-25. |
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| Authors: | CAI Yiquan and GONG Jing |
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| Institution: | CAI Yiquan and GONG Jing |
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| Abstract: | According to the velocity profile based on Prandtle mixing-length theory and the one measured by Nikuratse,the region of the viscous sub-layer in the smooth pipe is determined,and then the formula of the viscous sub-layer thickness is deduced. Then a new equation calculating the Critical Reynolds Number of the hydraulic smooth flow is obtained. It is proved that the new equation accords with the experimental data. |
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| Keywords: | smooth pipe critical Reynolds number calculation model evaluation determination |
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