固体发动机喷管延伸锥展开前级间分离的热环境分析①

:100622793(2004)0120012204,,,(,710025):FLUENT,RNG2,,,,,,:;;;:V435:AThethermalconditionanalysisofstageseparationforamultistagesolidrocketbeforethenozzleexitconeex2tendHANLi2xia,TIANWei2ping,YUEFa2ren,YUZhen2yong//TheFourthAcademyofCASC,Xian710025,China.Abstract:Thethermalconditionofstageseparationforamulti2stagesolidrocketwithextendiblenozzlewasanalyzedbymeansofflowcomputationsoftwaveFLUENTandtheturbulentflowmodelRNG2.Theresultsindicatethatcharacteristicsofthewakeflowintheextendiblenozzlechangesignificantlywhenthewakeflowisblockedbytheadaptercylinder,thefowarddomeandtheexitcone,especiallywhenabackflowcomesintobeingduetoef2fectofthefowarddomeofthefirststagemotorandashockwaveformsinthenozzle.Thethermalconditionparameterscalculatedcanprovidereferencestothethermal2protectiondesignofthesolidmotor.Keywords:solidpropellantrocketengine;wakeflow;stageseparation;thermalconditionanalysis1,,,,,,,,[14],,,2,8,,,11Fig.1Computationarea1;2;3;4;53FLUENT21271JournalofSolidRocketTechnologyVol.27No.12004:2003203229;:2003206212:(1976),,,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,RNG2RNG(RenormalizationGroup)N2S,,3.1,3,,FLUENTGAMBITINTERNAL22Fig.2Computationgrids3.21,5:a.:3534K;,X;,,,UDFb.:,,300K,0.0496MPac.:115,,d.:e.:,4,,0.002s,1600,20,0.32s,,,,3,,,,,,,,,,4,,,,,,,,,,,,,,,,,(a)t=0.01s(b)t=0.10s(c)t=0.20s(d)t=0.32s3Fig.3Pressurecloudcharts3120043,:1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)t=0.01s(b)t=0.10s(c)t=0.20s(d)t=0.32s4Fig.4Velocityvectorcloudchart4,,,,4,,,,,,,5t=0.32s5,,,,,,,,6,,,,,,,,,,,,5t=0.32sFig.5Velocityvectorchartofcomputationregionatt=0.32s6(d),(a)t=0.01s(b)t=0.10s(c)t=0.20s(d)t=0.32s6Fig.6Temperaturecloudchart5a.,,,,,,,b.,,,412004327©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.c.,,,,,,[1].[M].,1988.[2],.[M].,1979.[3].[M].,1988[4],.[J].,1998,19(4)..20004,(ATK),ATK2000,ATK85%;GenCorp,25%,V,ATK,(RSRM),2IIIATK(AFRL/PR)23(IHPRPT),20001116,2.3m,534kN,ATK29GEM240()III200377,III200211,ATKGEM260(1524mm)IVGEM260,GEM2401990III2001524RSRM,,200310ATKRSRM,128s,14000kN,4123s,11800kN,ATK2003,,,ATK,,(TCMCKBM)200312,,22,ATK1.3ATK,200273150s(DARPA/)2003,(PAW)PAW,,2V2003,LOSAT12ATKARCLOSAT()5120043,:1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.