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Mathematical Problems in Engineering
Volume 2015, Article ID 872573, 16 pages
http://dx.doi.org/10.1155/2015/872573
Research Article

Simulation of Cavitation Water Flows

1Institute of Geothermal Energy, Dedan Kimathi University of Technology, 101000 Nyeri, Kenya
2Chemical Engineering Department, School of Engineering, Collage of Agriculture, Engineering and Science, University of KwaZulu-Natal, 4041 Durban, South Africa

Received 20 July 2014; Revised 4 September 2014; Accepted 13 September 2014

Academic Editor: Junuthula N. Reddy

Copyright © 2015 Piroz Zamankhan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The air-water mixture from an artificially aerated spillway flowing down to a canyon may cause serious erosion and damage to both the spillway surface and the environment. The location of an aerator, its geometry, and the aeration flow rate are important factors in the design of an environmentally friendly high-energy spillway. In this work, an analysis of the problem based on physical and computational fluid dynamics (CFD) modeling is presented. The numerical modeling used was a large eddy simulation technique (LES) combined with a discrete element method. Three-dimensional simulations of a spillway were performed on a graphics processing unit (GPU). The result of this analysis in the form of design suggestions may help diminishing the hazards associated with cavitation.