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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 3: Water and Carbon: Climate Change Impact : Numerical simulation of exchange flows through rigid, emergent vegetation
Numerical simulation of exchange flows through rigid, emergent vegetation
Author : D. Souliotis1 and P. Prinos1
In this work lock-exchange flows through rigid, emergent vegetation, as found in wetlands and salt marshes, are investigated numerically. The CFD code FLUENT is used for solving the VARANS equations (Volume-Averaged-Reynolds-Averaged-Navier-Stokes) and the transport equations of a k-ε type turbulence model, while the effect of vegetation on the current is taken into account through additional terms in these equations. The VOF (Volume-Of-Fluid) method is also employed for “tracking” the interface between the salt and the fresh water, as well as any disturbances of the free surface due to the surface current. Numerical results for the toe velocity of the current, the length of the current and the shape of the interface between salt and fresh water are presented for cases with different vegetation density and these results are compared to available experimental and theoretical expressions derived from momentum and energy considerations.
File Size : 5,253,761 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 3: Water and Carbon: Climate Change Impact
Date Published : 01/07/2011
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