通气空泡内部流动特征数值仿真

仲 霄; 王树山; 马 峰

doi:10.11993/j.issn.1673-1948.2014.01.001

通气空泡内部流动特征数值仿真

doi: 10.11993/j.issn.1673-1948.2014.01.001

北京理工大学爆炸科学与技术国家重点实验室, 北京, 100081

基金项目: 爆炸科学技术国家重点实验室基金项目(YBKT09-07)

详细信息

作者简介:
仲霄(1985-), 男, 在读博士, 主要从事水弹道学研究.

中图分类号: TJ630.1; TV131.32
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- 被引次数: 0
出版历程
- 收稿日期: 2013-11-22
- 修回日期: 2013-12-16
- 刊出日期: 2014-02-20

Numerical Simulation on the Internal Flow Characteristics in Ventilated Cavity

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 通气条件会造成通气空泡内部压力分布变化, 对空泡壁面产生显著的冲击作用, 进而严重影响通气空泡动力学规律。本文利用FLUENT软件进行了通气空泡内部气体流动结构的数值仿真, 并通过数字图像粒子测速(DPIV)试验数据和高速摄影试验数据对数值模型进行联合标定, 分析了不同通气条件对空泡内部气体流动结构的影响规律。仿真结果表明, 通气条件对射流区的流动形态影响较大, 对回流区影响较小; 通气角影响射流区的流动结构, 通气量影响射流区和回流区在空泡内部所占比例。
- 通气空泡 /
- 内部流动 /
- 通气条件 /
- 数值仿真
Abstract: The distribution of internal pressure in ventilated cavity is affected by ventilation condition, which may in-duces distinct impact effects on the boundary of the cavity and the dynamics rules of ventilated cavity. In this paper, the internal flow structure of ventilated cavity is simulated by using CFD code of FLUENT, and the simulation results are calibrated by digital particle image velocimetry(DPIV) and high-speed camera experiments. Then the effects of different ventilation conditions on internal flow structure of cavity are analyzed. Numerical simulation results indicate that the ventilation conditions impose clear influence on the flow form of gas-jetting region and weak influence on the recircu-lating region, the angle of ventilation affects the structure of gas-jetting region, and the flow rate of ventilation affects the proportion of gas-jetting region and recirculating region to the internal cavity space.
- ventilated cavity /
- internal flow /
- ventilation condition /
- numerical simulation

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参考文献(9)

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