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�������պ����ѧѧ�� 2010, Vol. 36 Issue (2) :227-230    DOI:
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DZͧӦ��ȼ���������̵���ֵ���漰ʵ����֤
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1. �������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191;
2. �д��ع����Ź�˾��713�о���, ֣�� 450015
Numerical simulation and experimental validation on gas jet blowing-off process of submarine emergency
Yang Sheng1, Yu Jianzu1, Cheng Dong2, Gong Shaofeng2*
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

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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�Zm 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�Zm 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.
Keywords�� gas jet blow-off   numerical simulation   small-scale-model experiment   two-phase fluid     
Received 2009-01-15;
About author: �� ��(1984-),��,����������,��ʿ��,shyang@xmut.edu.cn.
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�� ��, �ཨ��, �� ��, ���ٷ�.DZͧӦ��ȼ���������̵���ֵ���漰ʵ����֤[J]  �������պ����ѧѧ��, 2010,V36(2): 227-230
Yang Sheng, Yu Jianzu, Cheng Dong, Gong Shaofeng.Numerical simulation and experimental validation on gas jet blowing-off process of submarine emergency[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(2): 227-230
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