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http://dx.doi.org/10.3741/JKWRA.2005.38.11.973

Numerical Simulation of Selective Withdrawal in Stably Stratified Flows  

Paik, Joong-Cheol (School of Civil and Environment Engineering, Georgia Institute of Technology)
Publication Information
Journal of Korea Water Resources Association / v.38, no.11, 2005 , pp. 973-984 More about this Journal
Abstract
A three-dimensional thermal hydrodynamic model is developed for carrying out unsteady simulation of the selective withdrawal of the stably stratified flow in a geometrically complex, natural reservoir The governing equations are discretized on a non-staggered grid using a second-order accurate, finite-volume scheme. The numerical model is validated by applying it to simulate three-dimensional, turbulent, stratified, shear-layer flow case. The numerical predictions appear to capture reasonably well the general shape of velocity and temperature profiles observed in the laboratory experiments, while significant overestimation of the magnitude of velocity profiles is observed in the application to the flow in a natural reservoir. The physics of selective withdrawal as emerge from the numerical simulations are also discussed.
Keywords
three-dimensional; thermal hydrodynamic model; selective withdrawal; stratified flow; shear flow;
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