Numerical simulation of rapid flow diversion structure

Author

Ma Xudong ; Dai Guangqing ; Yang Qing ; Li Guojing ; Chai Hua

Author_Institution

Stat Key Lab. of Hydraulics & Mountain River Eng., Sichuan Univ., Chengdu, China

fYear

2011

fDate

22-24 April 2011

Firstpage

5231

Lastpage

5234

Abstract

Three-dimensional diversion structure of open channel is simulated by k-ε two equation model and VOF model, the hydraulic characteristics is obtained including flow pattern, flow field distribution, water surface profile and split ratio and so forth. The flow field of diversion region is strong three-dimensional, the relative turbulence intensity increase as the discharge is increased. When the discharge is kept a high value, the flow is narrowed fiercely in the contract section of main channel. The flow engagement style behind splitter pier correlates closely to downstream water stage. It is conclude that the results of numerical is agree well with the results of experimental measured in terms of water surface profile and split ratio by comparison the numerical findings and experiment results.

Keywords

channel flow; flow simulation; numerical analysis; pattern formation; turbulence; 3D diversion structure; VOF model; contract section; discharge; diversion region; downstream water stage; flow engagement style; flow field distribution; flow pattern; hydraulic characteristics; k-ε two equation model; numerical simulation; open channel; rapid flow diversion structure; relative turbulence intensity; split ratio; splitter pier; water surface profile; Contracts; Discharges; Equations; Laboratories; Mathematical model; Numerical simulation; Rapid flow; diversion structure; flow field; split ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5776201

Filename

5776201