摘要
在分析传统跨音速和超音速面积律优缺点的基础上,利用CFD方法在描述流场和气动力方面的优势,从流动现象入手,提出了在面积律指导下的复杂外形超音速飞机的减阻设计方法。对翼身融合鸭式布局超音速飞机进行的减阻设计结果表明,该方法可以同时满足跨音速和超音速减阻要求,基于单个超音速飞行马赫数的减阻设计也可以满足其它超音速马赫数减阻要求。该方法对复杂外形的减阻设计有良好的适应性,使用方便,设计周期短,工程实用性强。
By analyzing the advantages and disadvantages of the traditional transonic and supersonic area rule, this paper proposed a new method for reducing supersonic wave drag for the complex configuration, which is based on the fluid mechanics and the area rule. An example of drag reduction design for a blended-wing-body canard configuration supersonic aircraft indicates that this method can simultaneously satisfy the requirement of drag reduction for transonic and supersonic flight, and the project of drag reduction design which is based on a single Mach number can also satisfy other Mach numbers in supersonic range. This new method of reducing supersonic wave drag can be used to redesign easily and it is very efficient and oractical for supersonic aircraft drag reduction.
出处
《机械科学与技术》
CSCD
北大核心
2009年第6期760-763,共4页
Mechanical Science and Technology for Aerospace Engineering
关键词
减阻设计
超音速飞机
鸭式布局
面积律
drag reduction design
supersonic aircraft
canard configuration
area rule
