국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	HEART Aerothermodynamic Analysis
저자	Mazaheri, Alireza
Keyword	AERODYNAMIC HEATING;; AEROSHELLS;; AEROTHERMODYNAMICS;; ANGLE OF ATTACK;; HEAT FLUX;; REENTRY VEHICLES;; SYSTEMS ENGINEERING;; TEST VEHICLES;; THERMAL PROTECTION;; TRAJECTORIES
URL	http://hdl.handle.net/2060/20120008176
보고서번호	NASA/TM-2012-217568
발행년도	2012
출처	NTRS (NASA Technical Report Server)
ABSTRACT	This paper presents an assessment of the aerothermodynamic environment around an 8.3 meter High Energy Atmospheric Reentry Test (HEART) vehicle. This study generated twelve nose shape configurations and compared their responses at the peak heating trajectory point against the baseline nose shape. The heat flux sensitivity to the angle of attack variations are also discussed. The possibility of a two-piece Thermal Protection System (TPS) design at the nose is also considered, as are the surface catalytic affects of the aeroheating environment of such configuration. Based on these analyses, an optimum nose shape is proposed to minimize the surface heating. A recommendation is also made for a two-piece TPS design, for which the surface catalytic uncertainty associated with the jump in heating at the nose-IAD juncture is reduced by a minimum of 93%. In this paper, the aeroshell is assumed to be rigid and the inflatable fluid interaction effect is left for future investigations.