Bookcover of Numerical modeling of bedform development in turbulent flows
Booktitle:

Numerical modeling of bedform development in turbulent flows

Using Large-Eddy-Simulation and Immersed-Boundary-Method

LAP LAMBERT Academic Publishing (2012-05-17 )

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ISBN-13:

978-3-659-13080-9

ISBN-10:
365913080X
EAN:
9783659130809
Book language:
English
Blurb/Shorttext:
Development of river bedform under interactions with water flows is a complex process due to turbulence of the flow and continuous change of bed geometry. In this study, the problem was examined by numerical computations. Two latest advanced tools of Computational Fluid Mechanics, namely Large-Eddy-Simulation and Immersed-Boundary-Method, were employed. Flows were turbulent at low Reynolds number and treated in three-dimensions. Bed surfaces was treated as continuos medium rather than individual sediment particles. The results showed strong correlations between change of the bed surface and the shear tress applied by the flows. Development of bedform from initially flat bed to full-size sandwaves had been observed from the computations. Experimentally observed phenomena, such as development of ripple train, was also successfully reproduced.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Quoc Y. Nguyen, John C. Wells
Number of pages:
140
Published at:
2012-05-17
Stock:
Available
Category:
Mechanics, acoustics
Price:
59.00 €
Keywords:
Large-Eddy-Simulation, bedform, Immersed-Boundary-Method, Sediment Transport, Turbulent flows

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