Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/66310
Title: Three-dimensional numerical simulation for an open channel flow with a constriction
Authors: Shankar, N.J. 
Chan, E.S. 
Zhang, Q.Y. 
Issue Date: 2001
Source: Shankar, N.J.,Chan, E.S.,Zhang, Q.Y. (2001). Three-dimensional numerical simulation for an open channel flow with a constriction. Journal of Hydraulic Research 39 (2) : 187-198. ScholarBank@NUS Repository.
Abstract: Flow characteristics in an open channel with a constriction are investigated numerically by using a three-dimensional multi-level hydrodynamic model. In this model, the two-step Euler predictor-corrector algorithm is introduced to predict and correct free surface water level. The momentum equations in horizontal directions are discretized in an explicit scheme for the component velocities u and v, and the continuity equation is discretized for the velocity w in an implicit scheme in uniform and non-uniform grid systems. The model has been tested against analytical solutions for two standard cases and used to study sudden contraction and expansion open channel flow. The numerical results are in good agreement with analytical and experimental data. Simulated flow patterns for the sudden contraction and expansion flow show reasonable flow characteristics downstream of an opening.
Source Title: Journal of Hydraulic Research
URI: http://scholarbank.nus.edu.sg/handle/10635/66310
ISSN: 00221686
Appears in Collections:Staff Publications

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