79004 A-1992

Forebodies of fineness ratio 1.0@ 1.5 and 2.0@ having low values of wave drag coefficient at transonic speeds.


 

 

非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 79004 A-1992 前三页,或者稍后再访问。

如果您需要购买此标准的全文,请联系:

点击下载后,生成下载文件时间比较长,请耐心等待......

 

标准号
79004 A-1992
发布日期
1992年10月01日
实施日期
2004年05月14日
废止日期
中国标准分类号
/
国际标准分类号
/
发布单位
ESDU - Engineering Sciences Data Unit
引用标准
28
适用范围
ESDU 79004 gives charts of forebody volume coefficient (ratio of forebody volume to that of the enclosing cylinder) and of wave drag for spherically blunted tangent ogives and paraboloids and modified ellipsoids in the Mach number range 0.7 to 1.05. The drag was obtained by integrating the surface pressure distribution@ derived from a finite difference program for calculating inviscid transonic flow@ to give a pressure drag that is assumed for these bodies at zero incidence to equal the wave drag. Computed pressure distribution data for a fineness ratio 2 forebody are compared with wind-tunnel measurements and found to agree closely.




Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号