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《Journal of Propulsion Technology》 2001-05
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Experimental analysis of exhausted flow field in closed container-launcher

XU Qiang 1, LIAO Guang xuan 1, LI Jun 2 (1 State Key Lab. of Fire Science, China Univ.of Science and Technology, Hefei 230026, China; 2 Coll. of Mechanics, Nanjing Univ. of Science and Technology, Nanjing 210094, China)  
Experimental analysis was conducted to study launching equipment damage caused by open delay of air proof cover. Static pressure on the launch tube wall and shock pressure on the air proof cover were measured in experiment. Wavelet analysis was applied to obtain frequency band energy spectrum of pressure data based on wavelet coefficient. Pressure changing with low frequency was extracted by wavelet filter. The relationship between shock impulse on the cover and amplitude of shock oscillation was also obtained. Study results show that harmful flow structure caused by open delay of the cover with initial shock wave and shock oscillation has significant amplitude in the clearance between rocket and launch tube,this would cause damage to launching equipment.
【CateGory Index】: TJ760.11
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Chinese Journal Full-text Database 3 Hits
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【Co-citations】
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1 LI Qi FU De-bin JIANG Yi (Beijing Institute of Technology,Beijing 100081,China);Unsteady Simulation of Shock Wave in Launcher[J];Journal of Projectiles,Rockets,Missiles and Guidance;2005-S4
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【Secondary References】
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