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Turbulence Heat and Mass Transfer 6. Proceedings of the Sixth International Symposium On Turbulence Heat and Mass Transfer
September, 14-18, 2009, Rome, Italy

DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf


ISBN Print: 978-1-56700-262-1

ISSN: 2377-2816

Latelly Averaged 2D Model For Thermal Stratification Simulations In Reservoir Environments

page 9
DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.1600
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要約

Many environmental impacts associated to hydroelectric reservoir filling processes depend strongly on the depth in the aquatic body, such as thermal and hydraulic stratifications, which can lead to formation of layers of different oxygen concentrations, affecting decomposition of drown organic material. 2d approaches are often more indicated for several environmental flows than 3d models because, for many applications, they provide predictions of adequate accuracy in a very short processing time compared to the respective 3d simulation. In the specific case of hydroelectric reservoirs, the appropriate 2d model is derived by integrating the 3d equations of momentum and mass conservation for incompressible flow across the reservoir, which leads to the laterally averaged equations of motion. In this paper, a 2dw model (laterally averaged model, w coming from width, analogous to 2dh model) applied to hydroelectric reservoir hydrodynamic simulations will be presented.

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