A numerical study of submerged hydraulic jumps
作者:
Dejiang Long,
Peter M. Steffler,
Nallamuthu Rajaratnam,
期刊:
Journal of Hydraulic Research
(Taylor Available online 1991)
卷期:
Volume 29,
issue 3
页码: 293-308
ISSN:0022-1686
年代: 1991
DOI:10.1080/00221689109498435
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A standard two-dimensionalk-εturbulence model is used to predict the mean flow and turbulence characteristics of submerged hydraulic jumps. An offset control volume method is developed to facilitate computation of the variable free surface. The numerical predictions are compared with experimental measurements under three conditions with supercritical Froude numbers ranging from 3.2 to 8.2 and submergence factors ranging from 0.24 to 0.85. Finally the numerical performance is evaluated and discussed in detail. It is concluded that the model is adequate for predicting the surface profile, mean velocity field and to some extent, the turbulence structure of submerged hydraulic jumps.
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