JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
65207040.pdf654.53 kB
Other TitleConsideration on Defining Strut Tail Shape in a Scramjet Engine
Author(jpn)佐藤, 茂; 渡邉, 孝宏; 福井, 正明; 宗像, 利彦
Author(eng)Sato, Shigeru; Watanabe, Takahiro; Fukui, Masaaki; Munakata, Toshihiko
Author Affiliation(jpn)宇宙航空研究開発機構 (JAXA); 日立東日本ソリューションズ; 日立東日本ソリューションズ; 日立東日本ソリューションズ
Author Affiliation(eng)Japan Aerospace Exploration Agency (JAXA); Hitachi East Japan Solutions; Hitachi East Japan Solutions; Hitachi East Japan Solutions
Issue Date2012-03-30
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第43回流体力学講演会: 航空宇宙数値シミュレーション技術シンポジウム2011論文集
JAXA special publication: Proceedings of 43rd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2011
Start page231
End page236
Publication date2012-03-30
AbstractJapan Aerospace Exploration Agency (JAXA) has been investigating scramjet engines in Kakuda Space Center using Ram Jet Engine Test Facililty (RJTF) et al. The engine performance tested at the flight condition of Mach 6 in RJTF showed very important characteristics depending on internal geometry. The authors found in the result of CFD research that there was a hot area caused by 3-dimensional interaction of the shock wave from cowl leading edge and the shock wave from strut leading edge and that the area "hot triagle" contributes to intensive combustion transition. Two engine configurations are compared to the engine configuration with 5/5 height strut that showed good thrust performance in the engine test. One is a configuration with tail-tapered strut (5/5 height) that are intended to reduce the engine inflow drag first, and the other one is a configuration with boat-tail strut (5/5 height) that has a finite width at its tail edge to produce fuel residence time in the recirculation region after itself. CFD is carried out in the case of the two configurations to solve the inner air flow, and the drag and the residence time are made clear. It is found that the configuration with boat-tail srut not only can reduce drag but also produce the finite residence time in the recirculation region.
DescriptionPhysical characteristics: Original contains color illustrations
Meeting Information: 43rd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2011 (July 7-8, 2011. Waseda University, International Conference Center), Tokyo Japan
形態: カラー図版あり
会議情報: 第43回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2011 (2011年7月7日-8日. 早稲田大学国際会議場) 東京
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-11-015

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.