IMHE OpenIR  > 山地灾害与地表过程重点实验室
Numerical Simulation on the Interaction between a Wall Jet and a Parallel Offset Jet
Language英语
Jiangang Chen1,2; Jianmin Zhang3; Yong Peng3; Shuai Li3
Corresponding AuthorChen Jiangang
2013-09
Source Publication第35届国际水力学大会 ; Proceedings of the 35th IAHR World Congress
Pages4932-4938
Conference Date2013-9
Conference PlaceChengdu China
Funding OrganizationIAHR
Abstract
Numerical simulation was carried out for the twin-jet flow generated by a plane wall jet and a parallel offset jet at an offset ration of s/h = 1.0 (4.5 < Fr < 8.0) by using Volume of Fluid (VOF) RNG k – ε turbulence model. As the jet fluid exited the two orifices, the shear layer between the jet and ambient fluid drove the ambient fluid entrainment into the jets. The simulation results were then compared with experimental results published in literature. The results of simulations were conducted to quantify the influence of the Froude number on the distances from the source to the merging point and combined point. The results show that the flow pattern in the stilling basin show a mixing flow pattern of impinging jet and submerged hydraulic jump. In the converging region, the velocity distribution shows a combination of wall jet and submerged hydraulic jump; while in the combined region, the velocity distribution is expected to behave like a single wall jet. The energy dissipation ration is larger than that of classical jump and it reaches above 70% at Fr > 7.0.
KeywordWall Jet Offset Jet Energy Dissipation
Subject Area水利工程
ISBN978-7-302-33544-3
Indexed BySCI
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6928
Collection山地灾害与地表过程重点实验室
Affiliation1.Key Laboratory of Mountain Hazards and Surface Process, CAS
2.Institute of Mountain Hazards and Environment, CAS
3.State Key Lab. of Hydraulics and Mountain River Engineering, Sichuan University
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Jiangang Chen,Jianmin Zhang,Yong Peng,et al. Numerical Simulation on the Interaction between a Wall Jet and a Parallel Offset Jet[C],2013:4932-4938.
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