| 固壁紊流流速分布指数型公式和阻力规律——(Ⅰ)粗糙区 |
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| 引用本文： | 肖勇 金忠青. 固壁紊流流速分布指数型公式和阻力规律——(Ⅰ)粗糙区[J]. 水科学进展, 1997, 8(2): 148-153 |
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| 作者姓名： | 肖勇 金忠青 |
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| 作者单位： | 河海大学水利水电工程学院 南京 210098 |
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| 摘 要： | 基于相似理论中的不完全自相似假设,研究了粗糙区紊流流速分布的结构形式,通过对尼库拉兹粗糙管水流试验资料的分析,进而给出了粗糙区紊流新的指数型流速分布公式,在此基础上,探讨了管道和明渠的阻力规律。
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| 关 键 词： | 紊流 流速分布 指数型公式 阻力规律 粗糙区 |
| 收稿时间： | 1996-09-06 |
Power Type Velocity Distribution Formula and Skin Friction Laws for Wall Turbulence: (Ⅰ) Hydraulic Rough Region |
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| Xiao Yong,Jin Zhongqing. Power Type Velocity Distribution Formula and Skin Friction Laws for Wall Turbulence: (Ⅰ) Hydraulic Rough Region[J]. Advances in Water Science, 1997, 8(2): 148-153 |
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| Authors: | Xiao Yong Jin Zhongqing |
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| Affiliation: | Hohai University, Nanjing 210098 |
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| Abstract: | Based on a new incomplete simiarity assumption of the simiarity theory and the classic Nikuradere experimental data,a power-type velocity distribution formula is proposed for turbulent flow in hydraulic rough region.Corresponding to the new formula,skin-friction laws for turbulent flow in hydraulic rough region in open channels and pipes are presented. |
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| Keywords: | turbulent flow velocity distribution power-type formula skin-friction law rough region |
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