Progress in the numerical simulation for cavitation jet flow field

doi:10.16085/j.issn.1000-6613.2015.04.004

Abstract

Abstract: Cavitation jet has been widely used because of its advantages in high efficient energy and zero pollutions. However,the complexity of its structure and hydrodynamics limit its applications in industries. In order to better understand and study the characteristics of cavitation jet flow field, numerical simulation of cavitation jet flow field,cavitation models,numerical calculation method and the characteristics of cavitation flow field were discussed in this paper. The numerical models,including cavitation models,turbulence models and multiphase model,were analyzed. Applications of Lagrangian and Eulerian numerical methods used in cavitation jet were compared,and the computation requirements in cavitation jet flow field. The influences of different factors on cavitation jet flow field were discussed. Three directions of future research were prospected.

Key words: cavitation, gas-liquid flow, CFD, numerical simulation

摘要： 空化射流因具有高效能、无污染等优点而被广泛应用,但是由于其流场结构和水动力学性能过于复杂,使得对其的应用受到限制,为进一步认识和研究空化射流流场特性,对空化射流数值模拟过程中的空化模型、数值计算方法和流场特性影响因素的研究进行了综合论述.阐述了数值模型中不同的空化模型、湍流模型和多相流模型各自的特点、适用条件及存在的问题;对比分析了拉格朗日和欧拉数值计算方法在空化射流模拟中的应用,以及空化射流自身特点对计算方法的要求;对空化射流流场特性的影响因素研究情况进行了综合概述,使复杂的空化射流流场结构有更加清晰的表现,为以后的研究与应用提供了依据.通过以上论述,对目前空化射流数值模拟研究进展中存在的问题进行了分析,并根据所提出的问题,对以后的研究方向提出展望,有助于以后在空化射流流场的数值模拟研究中取得进展.

关键词: 空化, 气液两相流, 计算流体力学, 数值模拟

CLC Number:

TQ027.2

LIN Xinghua, ZHANG Minge, QIN Qing, DANG Mingyan. Progress in the numerical simulation for cavitation jet flow field[J]. Chemical Industry and Engineering Progree, 2015, 34(04): 921-929.

林兴华, 张敏革, 秦青, 党明岩. 空化射流流场数值模拟的研究进展[J]. 化工进展, 2015, 34(04): 921-929.

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