| タイトル | Thermodynamic Analysis of Dual-Mode Scramjet Engine Operation and Performance |
| 本文（外部サイト） | http://hdl.handle.net/2060/20070000536 |
| 著者（英） | Auslender, Aaron; Tacket, Regan; Taylor, Trent; Riggins, David |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 2006-01-01 |
| 言語 | eng |
| 内容記述 | Recent analytical advances in understanding the performance continuum (the thermodynamic spectrum) for air-breathing engines based on fundamental second-law considerations have clarified scramjet and ramjet operation, performance, and characteristics. Second-law based analysis is extended specifically in this work to clarify and describe the performance characteristics for dual-mode scramjet operation in the mid-speed range of flight Mach 4 to 7. This is done by a fundamental investigation of the complex but predictable interplay between heat release and irreversibilities in such an engine; results demonstrate the flow and performance character of the dual mode regime and of dual mode transition behavior. Both analytical and computational (multi-dimensional CFD) studies of sample dual-mode flow-fields are performed in order to demonstrate the second-law capability and performance and operability issues. The impact of the dual-mode regime is found to be characterized by decreasing overall irreversibility with increasing heat release, within the operability limits of the system. |
| NASA分類 | Aerodynamics |
| レポートNO | AIAA Paper 2006-8059 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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