Correlation between pulse irradiation characteristic of thermal radiation in intense explosion and explosion yield

Gao Yinjun; Tian Zhou; Yan Kai; Liu Feng

doi:10.11883/1001-1455(2017)03-0549-05

Volume 37 Issue 3

Apr. 2017

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Gao Yinjun, Tian Zhou, Yan Kai, Liu Feng. Correlation between pulse irradiation characteristic of thermal radiation in intense explosion and explosion yield[J]. Explosion And Shock Waves, 2017, 37(3): 549-553. doi: 10.11883/1001-1455(2017)03-0549-05

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Gao Yinjun, Tian Zhou, Yan Kai, Liu Feng. Correlation between pulse irradiation characteristic of thermal radiation in intense explosion and explosion yield[J]. Explosion And Shock Waves, 2017, 37(3): 549-553. doi: 10.11883/1001-1455(2017)03-0549-05

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Correlation between pulse irradiation characteristic of thermal radiation in intense explosion and explosion yield

doi: 10.11883/1001-1455(2017)03-0549-05

Gao Yinjun^{1, 2
,},
Tian Zhou²,
Yan Kai²,
Liu Feng²

1.
School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
2.
Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2015-11-02
Rev Recd Date: 2016-05-26
Publish Date: 2017-05-25

Abstract

Abstract

A radiation hydrodynamics model was established to analyse the pulse irradiation characteristic of thermal radiation in intense explosion and its dependence on explosion yield. Based on the splitting method, the temperature gradient was set as the indicator for the dynamic regional division to achieve highly efficient parallel calculation, on the basis of which the thermal radiation evolutions in intense explosion at different yields were calculated. The results show that the intensity of thermal radiation at different times exhibits a two-pulse pattern. The intensity extremums and extremum times vary with the change of the explosion yields. The minimum time and second maximum time of the thermal radiation are proportional to the power of the explosion yields. The radiant power history exhibits similar results with the thermal radiation intensity. However, the extremum times may differ due to the dependence of the fireball radius on the explosion yield.
- intense explosion,
- thermal radiation,
- pulse irradiation,
- explosion yield

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References(15)

References

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