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Article Navigation >  Explosion And Shock Waves  > 2012  >  32(6): 604-608
LIXiao-jie, ZHANGCheng-jiao, YAN Hong-hao, WANGXiao-hong, WANGYu-xin. Differencemethodofcharacteristicsinisentropicflowofunderwaterexplosioninnear-fieldregion[J]. Explosion And Shock Waves, 2012, 32(6): 604-608. doi: 10.11883/1001-1455(2012)06-0604-05
Citation: LIXiao-jie, ZHANGCheng-jiao, YAN Hong-hao, WANGXiao-hong, WANGYu-xin. Differencemethodofcharacteristicsinisentropicflow ofunderwaterexplosioninnear-fieldregion[J]. Explosion And Shock Waves, 2012, 32(6): 604-608. doi: 10.11883/1001-1455(2012)06-0604-05
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Differencemethodofcharacteristicsinisentropicflow ofunderwaterexplosioninnear-fieldregion

doi: 10.11883/1001-1455(2012)06-0604-05
  • 1.

    StateKeyLaboratoryofStructuralAnalysisforIndustrialEquipment,

Funds:

NationalNaturalScienceFoundationofChina(10972051)

  • Publish Date: 2012-11-25
    Abstract
  • Animproveddifferencemethodofcharacteristicsisdiscribed.Twogroupsofcharacteristic equationswithentropytermsarededucedaccordingtothebasicmechanicsequations,andtheparticle pathlineisaddedintheequationsetasthethirdcharacteristicequation.Theisentropicflowafter blastshockwavecanbesolvedusingthethreecharacteristicequations.Thereisnoartificialviscosity termintheequations,sotheinfluenceofthehumaninterventionisreduced.Then,byapplyingthe improveddifferencemethodofcharacteristics,theunderwaterexplosionofthesphericalchargeof compositionB-3isstimulated.Inthescaleddistanceof1R/R04,thepeakpressureerrorbetween thenumericalcalculationresultsandtheexperimentcurveislessthan13.1%,whichprovesthatthe improveddifferencemethodofcharacteristicsisreasonable.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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