Numericalsimulationonrocketsledwater-brake

high-speedwater-entryimpact

WANG Jian; ZHAO Qing-bin; TAO Gang; WU Jun-ji

doi:10.11883/1001-1455(2010)06-0628-05

Volume 30 Issue 6

May 2014

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Article Navigation > Explosion And Shock Waves > 2010 > 30(6): 628-632

LIU Hong-yan, YANG Jun, CHEN Peng-wan. Simulation study on rockmass failure law with numerical manifold method under impact loading[J]. Explosion And Shock Waves, 2005, 25(3): 255-259. doi: 10.11883/1001-1455(2005)03-0255-05

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WANG Jian, ZHAO Qing-bin, TAO Gang, WU Jun-ji. Numericalsimulationonrocketsledwater-brake high-speedwater-entryimpact[J]. Explosion And Shock Waves, 2010, 30(6): 628-632. doi: 10.11883/1001-1455(2010)06-0628-05

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Numericalsimulationonrocketsledwater-brake high-speedwater-entryimpact

doi: 10.11883/1001-1455(2010)06-0628-05

1.
SchoolofPowerEngineering,NanjingUniversityofScienceandTechnology,

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Corresponding author: WANG Jian
Publish Date: 2010-11-25

Abstract

Abstract

Inallusiontolackresearchofrocketsledwater-brakehighspeedenteringintowater,the methodoffluid-solidcouplingwasusedtonumericallyresearch.Themodalitiesofwaterwerecalculatedsuchassupercavitation, uplist,spatterandpressure.Thevelocity,decelerationandresistance coefficientvariedwithtimeofwater-brakeweregained.Numericalresearchshowsasfollows:thesupercavitationgeneratedfrom water-brake'sknifebitandsideboardnoseaffectsthewaterresistance heavily,wateruplistaffectssubordinatelyandwaterspatterultimatelyhasnoeffect;steppedwaterentryconfigurationsofwater- breakcaneffectivelyreducepeakvalueofimpactforce.Thismethodaffordsbasesfordesigningrocketsledwater- brakeandreferencesforstudyingothercorrelativebodies highspeedwater-entry.
- fluidmechanics,
- high-speedwater-entry,
- fluid-solidcoupling,
- rocketsledwater-brake

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