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Simulation of Cavitation Water Flows

机译:空化水流的模拟

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摘要

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.
机译:从人工充气溢洪道向下流到峡谷的空气-水混合物可能会导致严重腐蚀,并损害溢洪道表面和环境。曝气机的位置,其几何形状和曝气流量是设计环保型高能溢洪道的重要因素。在这项工作中,提出了基于物理和计算流体动力学(CFD)建模的问题分析。所使用的数值模型是结合了离散元素方法的大型涡流模拟技术(LES)。在图形处理单元(GPU)上进行溢洪道的三维模拟。设计建议形式的分析结果可帮助减少与气蚀有关的危害。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第11期|872573.1-872573.16|共16页
  • 作者

    Zamankhan Piroz;

  • 作者单位

    Univ KwaZulu Natal, Coll Agr Engn & Sci, Sch Engn, Dept Chem Engn, ZA-4041 Durban, South Africa.;

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  • 正文语种 eng
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