几何尺寸与公差论坛

 找回密码
 注册
查看: 868|回复: 0

aeroheating

[复制链接]
发表于 2009-9-5 22:13:11 | 显示全部楼层 |阅读模式
aeroheating
is there any guidelines on the levels of aeroheat generated at various airspeeds?
i am interested in bodies travelling between mach 2 to mach 5 and the aeroheating that they would be subjected to. would there be any sigificant differences between the leading edges and planar surfaces.
any advice would be greatly appreciated.
eng-tips forums is member supported.
quite simple mach number calculations:
t_0/t = 1 + [(g-1)/2]*m^2
where t_0 is stagnation temperature, t is static (ambient) temperature, m is mach number, g is specific heat ratio.
g can be approximated by (n+2)/n where n is the degrees of freedom of the gas, which increases with temperature.  for room temperature, diatomic conditions n=5, g=1.4.  i think g~1.2 for re-entering apollo command modules.
dig around nasa's website for historical stuff about the x-15.  i re  
you might also simply peruse the many government lab report servers such as:
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|小黑屋|几何尺寸与公差论坛

GMT+8, 2024-5-24 00:46 , Processed in 0.035193 second(s), 20 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2023 Discuz! Team.

快速回复 返回顶部 返回列表