Numericalinvestigationonflowfieldcharacteristicsoftoroidalshockwaves

focusinginacylindricaltube

CHEN Er-yun; ZHAO Gai-ping; YANG Ai-ling

doi:10.11883/1001-1455(2012)03-0291-06

Volume 32 Issue 3

May 2014

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Article Navigation > Explosion And Shock Waves > 2012 > 32(3): 291-296

CHEN Er-yun, ZHAO Gai-ping, YANG Ai-ling. Numericalinvestigationonflowfieldcharacteristicsoftoroidalshockwavesfocusinginacylindricaltube[J]. Explosion And Shock Waves, 2012, 32(3): 291-296. doi: 10.11883/1001-1455(2012)03-0291-06

Citation:

CHEN Er-yun, ZHAO Gai-ping, YANG Ai-ling. Numericalinvestigationonflowfieldcharacteristicsoftoroidalshockwaves focusinginacylindricaltube[J]. Explosion And Shock Waves, 2012, 32(3): 291-296. doi: 10.11883/1001-1455(2012)03-0291-06

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Numericalinvestigationonflowfieldcharacteristicsoftoroidalshockwaves focusinginacylindricaltube

doi: 10.11883/1001-1455(2012)03-0291-06

1.
SchoolofEnergyandPowerEngineering,UniversityofShanghai
2.
forScienceandTechnology,Shanghai200093,China;

Funds:

NationalNaturalScienceFoundationofChina(50976072,51106099)

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Corresponding author: CHEN Er-yun
Publish Date: 2012-05-25

Abstract

Abstract

Aimedathightemperatureandhighpressurecharacteristicsgeneratedfromtoroidalshock wavefocusing,adiscontinuousfiniteelementmethodwasusedtonumericallysimulatetoroidalshock wavefocusinginaco-axiscylindricaltube.Thesimulatedresultsindicatethatthediscontinuousfinite elementmethodcancaptureefficientlythecomplicatedflow-fieldwavestructureswhichincludesecondaryshock wave,vortexring,triplepointandsphericaldouble Machreflectionformedduring shockwavespropagatingintheco-axialcylindricalshocktube.Andfromthesimulatedresults,itcan befoundthattheinnerradiusofthetoroidalpipelinecanaffectmarkedlythevalueandlocationofthe peakpressurealongtheaxisline,andtheouterradiusofthetoroidalpipelineplaysaweakrole.The investigatedresultscanprovideatheoreticalguideforengineeringapplication.
- fluidmechanics,
- focusing,
- discontinuousfiniteelementmethod,
- toroidalshockwaves

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