资源描述：
《高超声速验证飞行器助推分离段流场数值研究》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/298252787NumericalstudyofflowpasthypersonicresearchvehiclewithdetachingboosterArticleinTuijinJishu/JournalofPropulsionTechnology·June2002CITATIONSREADS3124authors,including:JunLiuDalianUni
2、versityofTechnology110PUBLICATIONS152CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:Spatialreconstructionofcell-centeredFVMViewprojectEmbeddeddiscontinuity-fittingmethodonunstructureddynamicgridViewprojectAllcontentfollowingthispagewasuploadedby
3、JunLiuon13December2017.Theuserhasrequestedenhancementofthedownloadedfile.2002年6月推进技术Jun.2002第23卷第3期JOURNALOFPROPULSIONTECHNOLOGYVol.23No.3高超声速验证飞行器助推分离段流场数值研究郭正,刘君,李晓斌,瞿章华(国防科技大学航天与材料工程学院,湖南长沙410073)摘要:为了模拟有相对运动的多体非定常绕流,发展了基于弹簧近似的非结构动网格方法及耦合动网格的Euler解算器。作为方法验证,模拟了俯仰振动的NACA0012翼型绕流,计算结果与
4、实验及文献结果非常接近。采用二维近似外形,对高超声速验证飞行器助推分离段流场进行了数值研究,得到了不同时刻由于多体相对运动形成的干扰流场结构以及分离过程的气动力参数。关键词:助推器分离;非定常流;流动分布;数值仿真;欧拉方程中图分类号:V421.7文献标识码:A文章编号:1001-4055(2002)03-0219-04NumericalstudyofflowpasthypersonicresearchvehiclewithdetachingboosterGUOZheng,LIUJun,LIXiao-bin,QUZhang-hua(Inst.ofAerospacean
5、dMaterialEngineering,NationalUniv.ofDefenceTechnology,Changsha410073,China)Abstract:DynamicunstructuredgridmethodologyandALEEulersolverforcomplexmulti-bodyflowsinvolvingmovingbound-ariesweredeveloped.PitchingNACA0012airfoilflowwassimulatedasademonstrationofthemethod,resultsofwhichcompar
6、ewellwiththatofexperimentandliterature.ThemethodologythenwasappliedtosimulatetheflowpastHyper-Xresearchvehiclewhensep-aratingwithitsbooster.Thoughthesimulationperformedon2-Dapproximateconfiguration,complexflowstructuresatdifferentin-stantswereobtainedaswellasforceandmomentcoefficientsdu
7、ringthewholecourse.Keywords:Boosterseparation;Unsteadyflow;Flowdistribution;Numericalsimulation;EulerequationNASA正在紧张进行的Hyper-X(X-43)计划,3.66m长1引言的验证飞行器在预定高度被助推火箭加速到需要的许多工程问题中包含具有相对运动的多个复杂速度后与助推火箭分离,固定臂及助推火箭头部相对形体相互干扰形成的非定常流场,例如机弹分离、助于飞行器的运动必然产生干扰气动载荷,对此干扰流推器与芯级分离、子母弹抛撒等等,采用时间精确
