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气云爆轰的一维模型
引用本文:范宝春,姚海霞.气云爆轰的一维模型[J].爆炸与冲击,1995,15(4):307-314.
作者姓名:范宝春  姚海霞
作者单位:南京理工大学动力工程学院
摘    要:激波作用下,悬浮液谪在高温、高压和高速气流中变形、蒸发、剥离甚至破碎。雾化燃料经过一段延迟时间后点火燃烧释放出大量的能量。这些能量由局部爆炸波所携带,通过碰撞传递给引导微波,从而使气云爆轰波自持。文中提出的气云爆轰的一维模型考虑了上述基本过程,并从理论上推导了点火面和CJ面的判据。通过计算,文中讨论了气云爆轰的松弛结构和影响CJ爆速的因素,爆速的计算值与实验值基本相符。

关 键 词:爆轰  激波  两相流  气云燃烧

AN ONE -DIMENSIONAL MODEL FOR THE STRUCTURE OF SPRAY DETONATION
Fan Baochun,Yao Haixia,Li Hongzhi.AN ONE -DIMENSIONAL MODEL FOR THE STRUCTURE OF SPRAY DETONATION[J].Explosion and Shock Waves,1995,15(4):307-314.
Authors:Fan Baochun  Yao Haixia  Li Hongzhi
Abstract:The suspended droplets subjected to the gaseous flow with high temporature, highpressure and high velocity undergo considerable deformation,evaporation,stripping andbreakup.At the end of the induction zone,the droplet micromist burns with an infinite rate andintroduces a sequence of blast waves,which catch up the leading shock front and make it self-sus-taining by energy transport.An one-dimensional model for the structure of spray detonation con-sidering the processes above has been developed and criterions for ignition and CJ plane have beenderived theoretically in this paper.The relaxation structure of spray detonations and the influenecfactors on CJ detonation velocity are discussed based on the model.Computed and measured re-sults of detonation velocity are in good agreement
Keywords:detonation  shock wave  two-phase flow  spray combustion  
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