弹用二元混压超声速进气道设计与试验研究

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1、西北工业大学硕士学位论文弹用二元混压超声速进气道设计与试验研究姓名：董家峰申请学位级别：硕士专业：航空宇航推进理论与工程指导教师：李进贤20070301西北丁业大学硕十学t寺论文ABSTRACTDuetothegoodperformanceandpotentialappliancedominanceofthesolidrocketramjet，theattentionofmanycountriesfocusesonthestudyofthesolidrocketramjet．Consequentlythestudyofsupersonicinletissignificantintheoryan

2、dengineeringapplication．TIlisthesisintroducesthedevelopmentofthesolidrocketramjettechnologydomesticallyandabroad．Characteristicsofsupersonicinletareanalyzedinthispaper．nedesignmethodsoftwo-dimensionalandthree-dimensionalmixedcompressionsupersonicinletandisolaterarestudied．11letwo．dimensionalmixedcom

3、pressionsupersonicinletwimwedgelipisdesignedbyusingthemethodofequalshockwaveintensity．ThesoftwareWaSemployedtosimulatetheflowfieldofthedesignandoff-designconditions．TheoptimalschemeWaSdeterminedbvadjustingthemodelsizeoftwo-dimensionalinletandthedistributionofinlet．OnthebaSicoftheoryanalysis，a1／3scal

4、emodelofa2．Dmixed．compressionsupersonicintakeWaStested．thetwo-dimensionalmixedcompressionsupcrsonicinlethasbeenstudiedexperimentallyandnumerically．Throughmanyschemesdesignandfilterof2．．Dmixed．compressionsupersonicintake，confirmthedesignschemeofexperimentalinvestation．n他experimentalresul招showthatacco

5、rding船thisdesignmethod．toacertaintyrangeofmachnumber,attackangleandsideslipangle，intakehasfavorablecapability．Intheprocessofstudy,itiSasupernalefficiencyandreasonableandfeaSibletechnicalroutetodesignedbyone—dimensionalwaveseriestheoryandconfirmedthemodelsizeofinletbytwo-dimensionalnumericalsimulatio

6、nandconfirmedthedistributionofinletbythethree．dimensinalnumericalsimulationandtestedbywindtunneltestofreducedscalemodel．Keywords：Solidrocketramjet；Intake；Numericalsimulation；WindtunneltestII西北工业大学硕十学位论文第一章绪论1．1选题的意义未来空中作战要求空空导弹具有快速发射、快速击中目标、作战隐蔽、机动灵活、射程远、精度高、生存能力强。中远程空空导弹以飞机为平台发射，具有上述优点，即将成为未来空中对抗的主

7、战武器。目前，我国空空导弹主要以固体火箭发动机为动力，由于推进剂能量特性的限制，要实现远射程和高飞行速度，必须增加导弹体积和重量。而固体火箭冲压发动机比冲高达10000N．s／kg以上，是固体发动机的3～5倍，在较大的马赫数范围内能够有效工作。依靠这种动力推动的导弹可实现全程有动力飞行，从而大大提高导弹的机动性、突防能力以及末端轨道姿态修正能力，因此固体火箭冲压发动机必将成为空空导弹的理想动力装黄