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 : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : Effect of interpolation technique on numerical accuracy and computational cost
Effect of interpolation technique on numerical accuracy and computational cost
Author : M. Moradi Larmaei and T.F. Mahdi
In this article, depth-averaged transport equations are solved on collocated triangular meshes. When collocated data arrangement is used, variables which are required at the cell face have to be interpolated from the center of the neighboring cells. Two different approaches are then adopted in order to interpolate the dependent variables into the cell face. In the first approach, all variables are interpolated into the cell face and, when required, the product of variables is calculated at the cell face. In the second approach, all variables, except the water surface elevation and depth, are integrated over the water depth and, their total value is interpolated into the cell face. Numerical simulations performed with these two different methods are compared in terms of accuracy and computational cost.
File Size : 411,742 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 7: Hydroinformatics
Date Published : 01/07/2011
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