摘要
利用数值计算开展了高超声速飞行器前体气动特性的考察,重点研究了三维效应对于前体流场及预压缩性能的影响,提出了抑制三维侧缘溢流影响、改善三维前体气动性能的前体侧缘设计思想,考察了侧缘外形的容积效率,提出了有效容积效率的概念和评估方法,对于不同侧缘形式的前体构型进行了气动特性的考察,给出了不同前体构型气动特征的变化规律。
Aerodynamie characteristics of fore-badics deduced simply from 2D configurations were studied. To restrain the compressed flow from spilling at side edges of forebodies, shaped waverider was added to the fore-body sides and features of the new forebody as waverider were proven by CFD analysis. More discussion about volume efficiency of the new shape was made and a concept as usable volume efficiency was presented. Different shapes side edges were designed, usable volume efficiency of each shape was discussed together with aerdynamic characteristics.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2007年第6期10-13,共4页
Journal of National University of Defense Technology
基金
国家部委基金资助项目
关键词
高超声速飞行器
乘波构型
升阻比
容积效率
hypersonic vehicle
waverider
lift to drag ratio
volume efficiency
