IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME C: Fluid Mechanics and Hydraulics : A three-dimensional numerical model for largescale river flow with a new mode-splitting technique
A three-dimensional numerical model for largescale river flow with a new mode-splitting technique
Author : Yasuo NIHEI, Yuichi KATO and Keita SATO
A three-dimensional (3D) numerical method for large-scale river flow with a new mode-splitting technique and parallel computation is developed. To remove the severe limitation of the computational time interval required for the 3D calculation in previous mode-splitting techniques, we present a new mode-splitting technique with high numerical stability and reduced computational time. The present model is applied to a flood flow computation of the Edo River, Japan. Good agreement is obtained between the model simulation and field measurements. More importantly, the computational time of the present model is only 0.4% of that of a normal 3D model without the mode-splitting and parallel processing techniques.
File Size : 155,105 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 32nd Congress - Venice (2007)
Article : THEME C: Fluid Mechanics and Hydraulics
Date Published : 01/07/2007
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