Influence of aeration and initial water thickness on axial velocity attenuation of jet flows
Influence of aeration and initial water thickness on axial velocity attenuation of jet flows
复制标题
曝气量和初始水厚度对射流轴向速度衰减的影响
DOI：
10.1631/jzus.a1200312
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发表时间：
2013-05
期刊：
影响因子：
--
通讯作者：
Wang-ru WEI, Jun DENG, Bin LIU
中科院分区：
文献类型：
--
作者：
Wang-ru WEI, Jun DENG, Bin LIU
随着水利工程中高水头大流量挑流消能的发展，水流特性对消能的影响日益重要。在本研究中，通气的影响以及……
With the development of ski-jump energy dissipation for high and large discharge among the hydraulic projects, the effects of characteristics of water flow on energy dissipation are increasingly important. In the present study, the effects of aeration and the initial water thickness on axial velocity attenuation of jet flow were analyzed, using variance analysis and numerical calculated methods. From the analysis of test data, both of the air concentration and initial water thickness are sensitive factors for the axial velocity attenuation of jet flow along the axial way, and there is no significant interaction effect between the aeration and initial water thickness. Aeration has a more significant effect on the axial velocity attenuation of jet flow. Decreasing the initial water thickness of jet flow can reduce the length of jet core, and make the initial position of axial velocity attenuation closer to the nozzle exit. The numerical calculation results show that aeration can contribute to the enhancement of entrainment ability of jet flow, which may improve the interaction between jet flow and surroundings. For ski-jump energy dissipation among the hydraulic projects, combining aeration with decreasing initial water thickness of jet flow is an effective way to enhance the rate of axial velocity attenuation.
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影响因子：
2.4
作者：
S. Chatterjee;S. Ghosh;M. Chatterjee
通讯作者：
S. Chatterjee;S. Ghosh;M. Chatterjee
影响因子：
3.2
作者：
H. Chanson;C. A. Gonzalez
通讯作者：
H. Chanson;C. A. Gonzalez
DOI：
--
发表时间：
2004
期刊：
--
影响因子：
--
作者：
Dey Doctoral
通讯作者：
Dey Doctoral
影响因子：
2.5
作者：
A. Pogorelova;V. Kozin
通讯作者：
A. Pogorelova;V. Kozin
影响因子：
2.5
作者：
Jian-gang Chen;JianMing Zhang;Weilin Xu;Yu-rong Wang
通讯作者：
Jian-gang Chen;JianMing Zhang;Weilin Xu;Yu-rong Wang