Effect of ambient pressure on propagation characteristics and laws of air blast waves

It is important to study the effect of ambient pressure on air blasts, and the explosion process of TNT explosives was calculated by using the AutoDyn-2D software in this paper. Moreover, the explosion parameters under different ambient pressure conditions were predicted, and the propagation charact...

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Autores principales:	Fei Deng, Wei Xiao, Min Song, Yuancheng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/552b44f8d9924adaa8defd05ce0d2720
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spelling	oai:doaj.org-article:552b44f8d9924adaa8defd05ce0d27202021-12-01T18:52:06ZEffect of ambient pressure on propagation characteristics and laws of air blast waves2158-322610.1063/5.0068962https://doaj.org/article/552b44f8d9924adaa8defd05ce0d27202021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/5.0068962https://doaj.org/toc/2158-3226It is important to study the effect of ambient pressure on air blasts, and the explosion process of TNT explosives was calculated by using the AutoDyn-2D software in this paper. Moreover, the explosion parameters under different ambient pressure conditions were predicted, and the propagation characteristics and laws of the air blast waves were obtained. The results showed that the overpressure of the incident wave, reflected wave, and Mach wave was positively related to the ambient pressure. High ambient pressure resulted in a decrease in the barotropic time and velocity of the incident wave, but its impulse increased. The wavefront of the Mach wave propagated in a curved form, and the pressure distribution on the Mach stem was not uniform. The height of the triple points was inversely proportional to the increase in the ambient pressure, and this trend was significant with the increase in the distance.Fei DengWei XiaoMin SongYuancheng ZhangAIP Publishing LLCarticlePhysicsQC1-999ENAIP Advances, Vol 11, Iss 11, Pp 115217-115217-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Fei Deng Wei Xiao Min Song Yuancheng Zhang Effect of ambient pressure on propagation characteristics and laws of air blast waves
description	It is important to study the effect of ambient pressure on air blasts, and the explosion process of TNT explosives was calculated by using the AutoDyn-2D software in this paper. Moreover, the explosion parameters under different ambient pressure conditions were predicted, and the propagation characteristics and laws of the air blast waves were obtained. The results showed that the overpressure of the incident wave, reflected wave, and Mach wave was positively related to the ambient pressure. High ambient pressure resulted in a decrease in the barotropic time and velocity of the incident wave, but its impulse increased. The wavefront of the Mach wave propagated in a curved form, and the pressure distribution on the Mach stem was not uniform. The height of the triple points was inversely proportional to the increase in the ambient pressure, and this trend was significant with the increase in the distance.
format	article
author	Fei Deng Wei Xiao Min Song Yuancheng Zhang
author_facet	Fei Deng Wei Xiao Min Song Yuancheng Zhang
author_sort	Fei Deng
title	Effect of ambient pressure on propagation characteristics and laws of air blast waves
title_short	Effect of ambient pressure on propagation characteristics and laws of air blast waves
title_full	Effect of ambient pressure on propagation characteristics and laws of air blast waves
title_fullStr	Effect of ambient pressure on propagation characteristics and laws of air blast waves
title_full_unstemmed	Effect of ambient pressure on propagation characteristics and laws of air blast waves
title_sort	effect of ambient pressure on propagation characteristics and laws of air blast waves
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/552b44f8d9924adaa8defd05ce0d2720
work_keys_str_mv	AT feideng effectofambientpressureonpropagationcharacteristicsandlawsofairblastwaves AT weixiao effectofambientpressureonpropagationcharacteristicsandlawsofairblastwaves AT minsong effectofambientpressureonpropagationcharacteristicsandlawsofairblastwaves AT yuanchengzhang effectofambientpressureonpropagationcharacteristicsandlawsofairblastwaves
_version_	1718404692059357184

Effect of ambient pressure on propagation characteristics and laws of air blast waves

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