北京航空航天大学学报 ›› 2010, Vol. 36 ›› Issue (2): 227-230.

• 论文 • 上一篇    下一篇

潜艇应急燃气吹除过程的数值仿真及实验验证

杨 晟1, 余建祖1, 程 栋2, 巩少峰2   

  1. 1. 北京航空航天大学 航空科学与工程学院, 北京 100191;
    2. 中船重工集团公司第713研究所, 郑州 450015
  • 收稿日期:2009-01-15 出版日期:2010-02-28 发布日期:2010-09-13
  • 作者简介:杨 晟(1984-),男,湖南岳阳人,博士生,shyang@xmut.edu.cn.

Numerical simulation and experimental validation on gas jet blowing-off process of submarine emergency

Yang Sheng1, Yu Jianzu1, Cheng Dong2, Gong Shaofeng2   

  1. 1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. The 713th Research Institute, China Shipbuilding Industry Corporation, Zhengzhou 450015, China
  • Received:2009-01-15 Online:2010-02-28 Published:2010-09-13

摘要: 进行了潜艇应急燃气吹除系统的小比例模型原理实验,模拟了水下100m深度时燃气吹除的排水性能与规律以及燃气吹除过程中的主要性能参数变化情况.建立了模拟小比例实验吹除过程的物理模型,应用结构化六面体网格对其两相流体流动区域进行了计算区域的离散化,并对100m海水深度下的燃气吹除过程进行了数值仿真计算,得到了对燃气泡成长规律的描述,深化了对排水过程机理的认识.仿真结果与实际情况的实验结果十分吻合,混合气体压力和排水总体积的相对误差均不超过5%,验证了数值仿真方法的可行性.

Abstract: Principle tests of submarine emergency gas jet blowing-off process, the small-scale-model of emergency blowing system with gas generator for submerged vehicle, were carried out, which simulated the drainage regularity and the major performance parameters of emergency gas jet blowing-off process while at 100m depth underwater. Physical model which was used to simulate the small-scale experiment of the blowing-off process was built, and the two-phase fluid domain for computing was dispersed and meshed by applying the structured hexahedral grid. The process in the model was numerically calculated while simulating the emergency condition of 100m depth under the sea water. As a result, the research had gained the material description of the gas bubble growing rules and the in-depth understanding of the blowing-off process. The simulation results match the experiment results of actual situation very well as the relative errors of gaseous mixture pressures and blowing-off volumes are less than 5%, therefore the feasibility of the simulating method is proved.

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