文章基本信息

标题：A high-order discrete scheme of Lattice Boltzmann method for cavitation simulation
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作者：Chengwen Zhong ; Min Zhong ; Cunru Bai 等
期刊名称：Advances in Computer Science and its Applications
印刷版ISSN：2166-2924
出版年度：2012
卷号：1
期号：1
页码：73-77
语种：English
出版社：World Science Publisher
摘要：The cavitation is defined as the process of formation of the vapor of liquid when it is subjected to reduced pressure at constant ambient temperature, including the process of formation, developing and breaking. Cavitation is a significant cause of wear in some engineering contexts and plays a destruction role in the aspect of fluid machinery, but supercavitation can be used to envelope an underwater device or vessel and allow it to travel at greatly increased speed by significant reduction of the drag. In present paper, high order isotropic discrete scheme and the Carnahan-Starling real-gas equation of state (C-S EOS) are coupled in the Shan-Chen multiphase lattice Boltzmann model. The reduction of the spurious current is simulated in the condition of the high order isotropic discrete scheme of force term, and the complete cavitation process of a bubble is also reproduced successfully. The relationships between the radius of bubble seed and cavitation for a density ratio of 50-200 have been investigated by Lattice Boltzmann method with the high-order isotropic discrete scheme.
关键词：Two phase flow;Lattice Boltzmann method;Isotropic;Cavitation