Flowpatternofobliquedetonationinduced

byahypervelocityballincombustiblegas

ZHOU Ping; FAN Bao-chun; GUI Ming-yue

doi:10.11883/1001-1455(2012)03-0278-05

Volume 32 Issue 3

May 2014

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Article Navigation > Explosion And Shock Waves > 2012 > 32(3): 278-282

ZHANG Tao, LIU Yusheng, GAO Zhipeng, YANG Jia, LIU Yi, GU Yan. Numerical simulation of the interlayer effects for fragments impacting steel-covered charge[J]. Explosion And Shock Waves, 2018, 38(6): 1241-1246. doi: 10.11883/bzycj-2017-0154

Citation:

ZHOU Ping, FAN Bao-chun, GUI Ming-yue. Flowpatternofobliquedetonationinduced byahypervelocityballincombustiblegas[J]. Explosion And Shock Waves, 2012, 32(3): 278-282. doi: 10.11883/1001-1455(2012)03-0278-05

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Flowpatternofobliquedetonationinduced byahypervelocityballincombustiblegas

doi: 10.11883/1001-1455(2012)03-0278-05

1.
NationalkeyLaboratoryofTransientPhysics,NanjingUniversityof
2.
ScienceandTechnology,Nanjing210094,Jiangsu,China;

Funds:

NationalNaturalScienceFoundationofChina(10872096)

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Corresponding author: FAN Bao-chun
Publish Date: 2012-05-25

Abstract

Abstract

Basedonthetwo-dimensionalaxisymmetricEulerequationscouplingwithchemicalreactions, thephenomenaofobliquedetonationinducedbyahypervelocityballinhydrogen-oxygen-nitrogen mixturewerenumericallystudiedbyusingwavepropagationalgorithm withSuperbeelimiter. Theresultsshowthatthestandingdetonationinducedbyaballshowthecompositestructureat Damkohlernumberconditionslightlylargerthanthethreshold,whosestructureiscomposedofa strongoverdrivenobliquedetonation,aweakoverdrivenobliquedetonation,areactingshockwave andainertshockwave.Thereweretwosubsoniczoneandasupersoniczoneintheflowpastasphere afterwave.Thesecondobliqueshockwavewasformedintheleewardsurfaceoftheball.
- mechanicsofexplosion,
- compositestructure,
- detonation,
- hypervelocityball

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