不同多相流模型在航行体出水流场数值模拟中的应用

魏海鹏;符松

振动与冲击 ›› 2015, Vol. 34 ›› Issue (4) : 48-52.

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PDF(1726 KB)
振动与冲击 ›› 2015, Vol. 34 ›› Issue (4) : 48-52.
论文

不同多相流模型在航行体出水流场数值模拟中的应用

  • 魏海鹏,符松
作者信息 +

The research of multiphase models applied for flow field numerical simulation of vehicle exiting water

  • Wei Haipeng, Fu Song
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文章历史 +

摘要

基于VOF和Mixture两种均相流模型,并结合输运方程类空化模型、k-ε湍流模型和动网格技术,针对圆柱形航行体出水过程进行了数值模拟,获得了无空化、带空泡两种状态下航行体出水过程中的多相流物理景象和表面压力变化历程。根据计算结果分析了VOF模型、Mixture模型在多相流界面捕捉、压力计算等方面的异同,并给出了两种模型的适用范围,在理论研究和工程应用上都具有重要意义。

Abstract

The objective of this paper is to evaluate the predicted capability of mixture and VOF models for the simulation of unsteady flows around a moving revolution vehicle. In the simulation, the k-ε turbulence model is used along with the transport equation-based cavitation model, in order to simulate the water-exit process, the dynamic mesh technique is applied. Results are shown at non-cavitation and cavitation, respectively, and the transient flow structures and time evolution of pressure distribution are obtained. The numerical results analyze the difference between the capability with VOF and Mixture model, which is very important for the theoretical research and engineering application.

关键词

VOF模型 / Mixture模型 / 水下航行体 / 带空泡出水

Key words

VOF model / Mixture model / underwater vehicle / exit water with cavity

引用本文

导出引用
魏海鹏;符松. 不同多相流模型在航行体出水流场数值模拟中的应用[J]. 振动与冲击, 2015, 34(4): 48-52
Wei Haipeng;Fu Song. The research of multiphase models applied for flow field numerical simulation of vehicle exiting water [J]. Journal of Vibration and Shock, 2015, 34(4): 48-52

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