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论文类型：期刊论文
发表时间：2003-06-01
发表刊物：Journal of Hydrodynamics
收录刊物：Scopus、EI
卷号：15
期号：3
页面范围：35-43
ISSN号：10016058
关键字：Computer simulation; Drag; Open channel flow; Three dimensional; Vegetation, Free surface turbulent flow; Large eddy simulation; Submerged vegetation domain, Turbulent flow
摘要：A three-dimensional Large Eddy Simulation (LES) has been performed of hydrodynamic behavior of turbulent flow in open channel that the lower part of the domain is occupied by a drag force layer to represent vegetation. One equation model is used to closing the resolvable scale equations. The turbulent characteristic length is parameterized by a k-l model. A phenomenal model is employed to express the performance of vegetation in the open channel. The result reveals that the present model has the capacity of describing three-dimensional structure of large eddy appearing in turbulent flow in open channel with vegetation region and has the capacity of tracing the development of large eddies.