Simulation of Turbulent Free Surface Obstructed Flow within Channels
Pu, Jaan H. Hussain, Khalid Tait, Simon J.
Pu, Jaan H.
Hussain, Khalid
Tait, Simon J.
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2007-07-01
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Abstract
Free surface flows of practical relevance in many engineering problems are almost always turbulent. In this paper, a numerical model to compute the free surface flow with turbulent effects is presented. The shallow water equations together with a k-ε turbulent model are discretized and simulated using a MUSCL-HANCOCK finite volume scheme. The proposed 2D k-ε shallow water model calculates the depth-averaged quantities such as water depth and velocity profile. The depth-averaged turbulent viscous stresses are determined from the depthaveraged version of a traditional 3D k-ε turbulent model. The numerical model is applied to a flow within channels that contain full depth obstructions. The k-ε turbulent model results are compared with existing Direct Numerical Simulations (DNS) predictions and show a high level of accuracy.
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Pu JH, Hussain K and Tait SJ (2007) Simulation of Turbulent Free Surface Obstructed Flow within Channels. In: Proceedings of the 32nd International IAHR World Congress - Harmonizing the Demands of Art and Nature in Hydraulics, Venice, Italy. theme A1L 1-8.
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