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Simulation of Turbulent Free Surface Obstructed Flow within Channels

No / 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.

Identiferoai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/11641
Date01 July 2007
CreatorsPu, Jaan H., Hussain, Khalid, Tait, Simon J.
Source SetsBradford Scholars
LanguageEnglish
Detected LanguageEnglish
TypeConference paper, No full-text in the repository
Relationhttps://www.iahr.org/site/cms/contentDocumentView.asp?chapter=42&category=118&article=746

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