Experimentonplasma-liquidinteraction

inastepped-wallchamber

ZHANG Qi; YU Yong-gang; LU Xin; LIU Dong-yao

doi:10.11883/1001-1455(2011)03-0311-06

Volume 31 Issue 3

May 2014

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ZHANG Qi, YU Yong-gang, LU Xin, LIU Dong-yao. Experimentonplasma-liquidinteractioninastepped-wallchamber[J]. Explosion And Shock Waves, 2011, 31(3): 311-316. doi: 10.11883/1001-1455(2011)03-0311-06

Citation:

ZHANG Qi, YU Yong-gang, LU Xin, LIU Dong-yao. Experimentonplasma-liquidinteraction inastepped-wallchamber[J]. Explosion And Shock Waves, 2011, 31(3): 311-316. doi: 10.11883/1001-1455(2011)03-0311-06

ZHANG Qi, YU Yong-gang, LU Xin, LIU Dong-yao. Experimentonplasma-liquidinteractioninastepped-wallchamber[J]. Explosion And Shock Waves, 2011, 31(3): 311-316. doi: 10.11883/1001-1455(2011)03-0311-06

Citation:

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Experimentonplasma-liquidinteraction inastepped-wallchamber

doi: 10.11883/1001-1455(2011)03-0311-06

1.
SchoolofEnergyandPowerEngineering,NanjingUniversityofScienceandTechnology,

Funds:

NationalNaturalScienceFoundationofChina(50776048)

Publish Date: 2011-05-25

Abstract

Abstract

Toexploretheinfluenceofthechamberboundaryshapeonthecombustioncontrolina bulk-loadedliquid-mediumelectrothermal-chemicalgun,theplasmajetpropagationintheliquidmediumwasexperimentallyinvestigatedbyusingahigh- speeddigitalcamera.Specialattentionwaspaidto theplasmajet-liquidmediuminteractionundertheconditionsofdifferentdischargevoltages,different nozzlediametersanddifferentdivergentboundaries.Thetime-sequencephotosoftheplasmajetpropagationintheliquidmedium wereobtained,fromthephotostheaxialdisplacementhistoriesofthe Taylorcavitywereachievedunderthedifferentconditions,andthecorrespondingpropagationvelocitiesoftheTaylorcavitywerecalculated. Sequentially,theinteractionmechanismbetweentheplasma jetandtheliquidmediumwasanalyzed.TheresultsindicatethatthoughtheaxialvelocityoftheTaylorcavityisfluctuant, asawholeitisdecrescent;andthatatthewallsteps,theradialturbulenceof theplasmajetisenhanced,whichcanstrengthentheentrainmenteffectofreflux.
- fluidmechanics,
- plasmajet,
- stepped-wall,
- liquidmedium