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�������պ����ѧѧ�� 2009, Vol. 35 Issue (4) :411-416    DOI:
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1. �������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191;
2. �д��ع����Ź�˾ ��713�о���, ֣�� 450015
Theoretical analysis 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�� By thermodynamics analyzing on the process of gas jet blow-off in the ballast tank, a series of energy equation, quality equation and state equation of the process were established, in considering the evaporation of water circumstances. Therefore the mathematical-and-physical model of the process was deduced. Principle tests of emergency gas jet blowing-off process, which is 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�km depth underwater, and the influential factors which impact on the efficiency were investigated. The simulation results of the model was compared with the experimental results, and it was suggested that the model of the process which developed by thermodynamics methods for engineering calculating is accord with the factual experiments situation and can provides significant basis for the designing and applying of the emergency blowing system with gas generator for submerged vehicles.
Keywords�� emergency blowing-off system   gas generator   gas jet blow-off   M-H equations of state-gases   small-scale-model     
Received 2008-09-11;
About author: �� ��(1984-),��,����������,��ʿ��,raykool@ase.buaa.edu.cn.
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�� ��, �ཨ��, �� ��, ���ٷ�.DZͧӦ��ȼ���������̵����۷�����ʵ����֤[J]  �������պ����ѧѧ��, 2009,V35(4): 411-416
Yang Sheng, Yu Jianzu, Cheng Dong, Gong Shaofeng.Theoretical analysis and experimental validation on gas jet blowing-off process of submarine emergency[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(4): 411-416
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