| 明渠中掺气水流紊流流动规律 |
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| 引用本文： | 郑永刚,方铎.明渠中掺气水流紊流流动规律[J].水利学报,1997(3):33-36,48. |
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| 作者姓名： | 郑永刚 方铎 |
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| 作者单位： | [1]石油大学 [2]四川联合大学 |
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| 摘 要： | 本文利用变密度变粘度流体在明渠中紊流流动时的运动微分方程式，研究了明渠中掺气水流紊流流动规律，得出，明渠中的掺气紊流不能在相同条件下增大明渠水流量，即不能实现有效的减阻。文中提出了密度紊动应力、粘度紊动应力、流量增加率等概念。
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| 关 键 词： | 明渠 变粘度流体 紊动 掺气 |
The turbulent laws of aeration flows in open channel |
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| Zheng Yonggang.The turbulent laws of aeration flows in open channel[J].Journal of Hydraulic Engineering,1997(3):33-36,48. |
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| Authors: | Zheng Yonggang |
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| Affiliation: | Zheng Yonggang(University of Petroleum) Fang Duo(Sichuan Union University) Li Guifen (China Institute of Water Resources and Hydroelectric Power Research) |
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| Abstract: | In this paper,differential equation of turbulent flow with density gradient and the turbulent laws of aeration flow in open channel are studied.It is pointed out that the water flow rate will not increase due to aeration,i.e.the drag reduction will not be obtained.The concepts of density turbulence stress,viscosity turbulence stress and the ratio of flow increase are discussed. |
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| Keywords: | open channel variable viscosity fluid turbulence aeration |
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