Delay detached eddy simulation of hydraulic characteristics after a new sudden lateral enlargement and vertical drop at the end of reversion curve of a spillway

Author

Li Guojing ; Dai Guangqing ; Yang Qing ; Ma Xudong

Author_Institution

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

fYear

2011

fDate

15-17 July 2011

Firstpage

151

Lastpage

155

Abstract

The numerical simulation of hydraulic characteristics is crried out with delay detached eddy simulation (DDES) model and VOF method. The simulation results agree well with experimental date. The flow condition is smooth, the length of lateral cavity gradually increases with the size of lateral enlargement increases, only small water-wing emerges after the lateral cavity and the backwater do not appear in bottom cavity. The research results can provide the reference for design and scientific research.

Keywords

dams; design engineering; geotechnical engineering; hydraulic systems; DDES model; VOF method; delay detached eddy simulation; flow condition; hydraulic characteristic; lateral cavity; lateral enlargement; reversion curve; spillway; vertical drop; Cavity resonators; Computational modeling; Delay; Mathematical model; Numerical models; Radio access networks; Viscosity; VOF; aeration to prevent cavitation; delay detached eddy simulation; hydraulic characteristics; lateral cavity;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5986880

Filename

5986880