Emergence and diffusion of the poisonous gas on the ground for liquid launch vehicle explosion

CHEN Xin-hua; XIANG Si-gui

doi:10.11883/1001-1455(2005)04-0355-06

Volume 25 Issue 4

Dec. 2014

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Article Navigation > Explosion And Shock Waves > 2005 > 25(4): 355-360

FengBin-bin, RuiXiao-ting, YunLai-feng, WangYan. Acomputationalmethodforshapecharacteristicparametersoffracturedpropellantingrainform[J]. Explosion And Shock Waves, 2013, 33(3): 292-297. doi: 10.11883/1001-1455(2013)03-0292-05

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CHEN Xin-hua, XIANG Si-gui. Emergence and diffusion of the poisonous gas on the ground for liquid launch vehicle explosion[J]. Explosion And Shock Waves, 2005, 25(4): 355-360. doi: 10.11883/1001-1455(2005)04-0355-06

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Emergence and diffusion of the poisonous gas on the ground for liquid launch vehicle explosion

doi: 10.11883/1001-1455(2005)04-0355-06

1.
Academy of Equipment Command & Technology, Beijing 101416, China

Publish Date: 2005-07-25

Abstract

Abstract

This paper presents a vaporization model of remnant propellant on the ground and a diffusion model of the poisonous gas for liquid hypergolic propellant launch vehicle explosion. The estimated mass of remnant propellant on the ground, the equivalent diameter of contaminated zone and the evaporation rate of N2O4 and UDMH are conducted for a N2O4/UDMH liquid propellant explosion respectively. The present models are applicable for predicting the vaporization (time) of remnant propellant on the ground and the contaminated range of poisonous gas for large scale liquid hypergolic propellant launch vehicle explosions. It provides an available evaluation method for safety measurement at the space vehicle launching site.
- mechanics of explosion,
- diffusion,
- vaporization model,
- propellant,
- liquid launch vehicle

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