무딘 물체의 노즈 반지름이 비평형 유동의 공력 가열에 미치는 영향 Effects of Nose Radius of Blunt Body on Aerodynamic Heating in Thermochemical Nonequilibrium Flow

The effect of nose radius on aerodynamic heating is investigated by using the Navier-Stokes code extended to thermochemical nonequilibrium airflow. Spherical blunt bodies, whose nose radius varies from 0.003048 m to 0.6096 m, flying at Mach 25 at an altitude of 53.34 km are considered. Comparison of heat flux at stagnation point with the solution of Viscous Shock Layer and Fay-Riddell are made. Results show that the flow for very small radius is in a nearly frozen state, and therefore the heat flux due to diffusion is smaller than that due to translational energy As the radius becomes larger, the portion of heat flux by diffusion becomes greater than that of heat flux by translational temperature and approaches to a constant value.
Publisher
한국전산유체공학회
Issue Date
2003-12
Language
KOR
Citation

한국전산유체공학회지, v.8, no.4, pp.34 - 40

ISSN
1598-6071
URI
http://hdl.handle.net/10203/14794
Appears in Collection
AE-Journal Papers(저널논문)
Files in This Item
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