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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS : On Three Local Equilibrium Functions in the ELABSWE
On Three Local Equilibrium Functions in the ELABSWE
Author : J. G. Zhou
In this paper, we formulate three local equilibrium distribution functions for use in the enhanced lattice Boltzmann method for shallow water equations (eLABSWE). Using one of the functions in the lattice Boltzmann equation can recover the macroscopic shallow water equations. Their effect on accuracy and stability are investigated through simulations of wind-induced flows in a dish-shaped basin. It is found that the eLABSWE together with one of the three local equilibrium distribution functions can produce same accurate solutions but their influence on numerical stability is different in terms of the single relaxation time. This providesan opportunity to choose asuitablelocal equilibrium distribution function for the eLABSWE in simulating practical shallow water flows.
File Size : 240,096 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS
Date Published : 19/07/2016
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