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Volume 31 Issue 2
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Article Navigation >  Explosion And Shock Waves  > 2011  >  31(2): 135-140
LIU Jin-hong, ZOU Li-yong, BAI Jing-song, TAN Duo-wang, HUANG Wen-bin, GUO Wen-can. Richtmyer-Meshkovinstabilityofshock-acceleratedair/SF6interfaces[J]. Explosion And Shock Waves, 2011, 31(2): 135-140. doi: 10.11883/1001-1455(2011)02-0135-06
Citation: LIU Jin-hong, ZOU Li-yong, BAI Jing-song, TAN Duo-wang, HUANG Wen-bin, GUO Wen-can. Richtmyer-Meshkovinstabilityofshock-acceleratedair/SF6interfaces[J]. Explosion And Shock Waves, 2011, 31(2): 135-140. doi: 10.11883/1001-1455(2011)02-0135-06
shu

Richtmyer-Meshkovinstabilityofshock-acceleratedair/SF6interfaces

doi: 10.11883/1001-1455(2011)02-0135-06
  • 1.

    NationalKeyLaboratoryofShock WaveandDetonationPhysics,InstituteofFluidPhysics,

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NationalNaturalScienceFoundationofChina(11072226,10772166)

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  • Corresponding author: LIU Jin-hong
  • Publish Date: 2011-03-25
    Abstract
  • Inashocktube,theair/SF6interfacewasacceleratedbytheincidentshockwavewiththe low Machnumberof1.27.Theinitialsinusoidalinterfacewasobtainedbyapplyingthepolymeric membranewiththethicknessof1~2mandtheinterfaceevolutionwasmonitoredbyusingthetimeresolvedshadowgraphtechnique. TheRichtmyer-Meshkov (RM)instabilityofthesinusoidalinitial perturbationattheair/SF6interfaceswascharacterizedbythespikesoftheheavyfluid(SF6)falling intothelightfluid(air)andthebubblesofthelightfluid(air)risingintotheheavyfluid(SF6). DuetotheRichtmyer-Meshkov (RM)instabilitycausedbythetangentialvelocitydifferenceatthe air/SF6interfaces,theheadsofthespikesoverturnedintomushroomshapesandsubsequently themushroompolesbrokeup.AndthisRMinstabilitycausedthespikestobreakup.TheexperimentaldisturbanceamplitudeisinagreementwiththeresultsbytheZhang- Sohn modelandPPM simulation.
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