The influence of stress-free boundary conditions on the turbulence properties and mean velocity profile near the free boundary of an open-channel flow is investigated with the help of a large-eddy simulation. The turbulence intensity parallel to the surface is enhanced, while the intensity of the turbulent fluctuations normal to the surface is decreased when compared to the case of closed-channel flow. The mean flow profile differs from the logarithmic law. These findings agree well with the results of experimental research.
机构:
Univ London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, EnglandUniv London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, England
Shi, J
Thomas, TG
论文数: 0引用数: 0
h-index: 0
机构:
Univ London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, EnglandUniv London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, England
Thomas, TG
Williams, JJR
论文数: 0引用数: 0
h-index: 0
机构:
Univ London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, EnglandUniv London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, England
机构:
Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R ChinaWuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China
Xue, Wanyun
Qian, Zhongdong
论文数: 0引用数: 0
h-index: 0
机构:
Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R ChinaWuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China