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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Three-dimensional computations of flow and morphology change in a curved open-channel
Three-dimensional computations of flow and morphology change in a curved open-channel
Author : SUNG-UK CHOI(1) & SEONMIN LEE(2)
This study presents a three-dimensional numerical model that is capable of computing turbulent flow and morphological change in a curved stream. The Reynolds-Averaged Navier-Stokes equations were solved by the finite volume method with the non-staggered curvilinear grid. The standard k-ε model was used for the turbulence closure. The hybrid scheme and the SIMPLER algorithm (Patankar and Spalding, 1972) were used for differencing the convection and diffusion terms and velocity-pressure coupling, respectively. The momentum interpolation method proposed by Rhie and Chow (1983) was used to eliminate numerical oscillations, known as checkerboard, caused by the use of the non-staggered grid. The Engelund-Hansenís (1967) formula was used to estimate the bedload. The Exnerís equation was solved to account for the
morphology change.
File Size : 446,835 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 30/09/2015
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