Atheoreticalstudyonsteadynon-idealdetonation

withmetalconfinement

YU Ming; SUNYu-tao; ZHANG Wen-hong

doi:10.11883/1001-1455(2012)06-0635-06

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YU Ming, SUNYu-tao, ZHANG Wen-hong. Atheoreticalstudyonsteadynon-idealdetonationwithmetalconfinement[J]. Explosion And Shock Waves, 2012, 32(6): 635-640. doi: 10.11883/1001-1455(2012)06-0635-06

Citation:

YU Ming, SUNYu-tao, ZHANG Wen-hong. Atheoreticalstudyonsteadynon-idealdetonation withmetalconfinement[J]. Explosion And Shock Waves, 2012, 32(6): 635-640. doi: 10.11883/1001-1455(2012)06-0635-06

YU Ming, SUNYu-tao, ZHANG Wen-hong. Atheoreticalstudyonsteadynon-idealdetonationwithmetalconfinement[J]. Explosion And Shock Waves, 2012, 32(6): 635-640. doi: 10.11883/1001-1455(2012)06-0635-06

Citation:

YU Ming, SUNYu-tao, ZHANG Wen-hong. Atheoreticalstudyonsteadynon-idealdetonation withmetalconfinement[J]. Explosion And Shock Waves, 2012, 32(6): 635-640. doi: 10.11883/1001-1455(2012)06-0635-06

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Atheoreticalstudyonsteadynon-idealdetonation withmetalconfinement

doi: 10.11883/1001-1455(2012)06-0635-06

1.
InstituteofAppliedPhysicsandComputationalMathematics,Beijing 100094)

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Corresponding author: YU Ming
Publish Date: 2012-11-25

Abstract

Abstract

Toanalyzethesteadynon-idealdetonationwith metalconfinement,theJWLequationof stateisadoptedfortheunreactedexplosiveanddetonationproduct,andthep(,T)equationofstate forthemetal.Andthethree-termLee-Tarverreactionrateisadoptedinthechemicalreactionmodel. Basedonthehypothesisthatthedeflectangleoftheflowcrossingtheleadingshockwaveislinear withheight,theshapeoftheleadingshockwavecanbeobtainedfromthepolarcurve,anddetonation edgeanglemaybeobtainedfromthemarchingpointbetweenthepolarcurvesoftheunreactedexplosiveandthemetal. Basedonthehypothesisthatthestreamlinesbehindtheleadingshockwaveare straightanddiverging,thegoverningequationsofdetonationwillchangefromthepartialdifferential typeintotheordinarydifferentialtype,thenthelocationsofthesoniclineandtheendofchemistry reactioncanbeobtainedthroughsolvingtheordinarydifferentiaequationsalongthestreamlines.The polarcurvesoftheshockedmetalshowthattheflowsbehindtherefractionshockmaybesupersonic withthehardcompressibility,orsubsonicwiththeeasycompressibility.Thetheoryresultsaboutthe structurecharacterofthedetonationreactionzoneandtheflowstateinsidetheconfinementmetalagreeswiththehighprecisionnumericalsimula ion
- mechanicsofexplosion,
- steadynon-idealdetonation,
- streamline,
- metalconfinement,
- shockpolarcurve