Behaviorsofbubblejetsinducedbyunderwaterexplosion

ofcylindricalchargesunderfree-fieldconditions

HUANG Chao; WANG Bin; ZHANG Yuan-ping

doi:10.11883/1001-1455(2011)03-0263-05

Volume 31 Issue 3

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HUANG Chao, WANG Bin, ZHANG Yuan-ping, . Behaviorsofbubblejetsinducedbyunderwaterexplosionofcylindricalchargesunderfree-fieldconditions[J]. Explosion And Shock Waves, 2011, 31(3): 263-267. doi: 10.11883/1001-1455(2011)03-0263-05

Citation:

HUANG Chao, WANG Bin, ZHANG Yuan-ping, . Behaviorsofbubblejetsinducedbyunderwaterexplosion ofcylindricalchargesunderfree-fieldconditions[J]. Explosion And Shock Waves, 2011, 31(3): 263-267. doi: 10.11883/1001-1455(2011)03-0263-05

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Behaviorsofbubblejetsinducedbyunderwaterexplosion ofcylindricalchargesunderfree-fieldconditions

doi: 10.11883/1001-1455(2011)03-0263-05

1.
SchoolofShipbuildingEngineering,HarbinEngineeringUniversity,
2.
Harbin150001,Heilongjiang,China;

Funds:

NationalNaturalScienceFoundationofChina(10976008)

More Information

Corresponding author: HUANG Chao
Publish Date: 2011-05-25

Abstract

Abstract

UnderwaterexplosionexperimentswerecarriedoutforPETNcylindersinawatertankand elementarydataaboutbubblemotionsunderfree-fieldconditionswereobtainedbyusingthehighspeedphotographytechnology. Resultsshowthatthebubbledynamicsofcylindricalchargesdiffers fromthoseofsphericalones,andchargemountingmodesaffectmarkedlybubblebehaviors.Fora horizontallymountedcylindricalcharge,asymmetriccollapseisachievedduetotheasymmetricmotionofthebubbleinterface. Asaresult,anasymmetricjetisformedandthewidthofthejetvaries withthelength-diameterratioofthecharge.Ontheotherhand,foraverticallymountedcylindrical charge,asymmetricjetisgeneratedduetotheaxialsymmetricmotionofthebubbleinterface.Inthe caseofequal-weightcharges,thevelocityofthejetgeneratedbytheverticallymountedcylindrical chargeishigherthanthatgeneratedbythehorizontally-mountedone.
- mechanicsofexplosion,
- waterjetbehavior,
- underwaterexplosion,
- bubble,
- cylindrical charge