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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Development of a numerical model for debris flow over steep slope terrain near the suburbs and urban...
Development of a numerical model for debris flow over steep slope terrain near the suburbs and urban area
Author : SEUNG OH LEE(1), CHANG GEUN SONG(2) & SEUNG MYUNG OH(3)
ABSTRACT
In this study, a numerical model for the debris flow analysis was developed with emphasis on adopting the flow resistance
relations with among 10 bottom shear stresses in the literatureoptions. To these ends, the shallow water equations were
modified to have variable bottom shear stresses, and Petrov-Galerking stabilization scheme was employed to consider
complex geomorphology in the suburbs and urban areas. The Numerical results from the developed model in this study
was were compared with the analytical solution in applied to the dam break problem by plastic fluid. Since physical
phenomena of the debris flow were accurately reflected on the mathematical model, the developed debris analysis model
for general purposes was found to be efficient in simulating the debris movement and computing the extent of spread
area.
File Size : 280,445 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 28/08/2015
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