Research on the Optimization Design of Variable-geometry Scramjet
The integratedhypersonic vehicle performance evaluation and design-scheme selection are urgently demanded during the preliminary design stage. Therefore, developing a convenient, accurate performance evaluation method for the integrated scramjet/airframe propulsion flowpath is a very important topic to be settled. In the present paper, a performance calculation program and the optimization design platform of integrated scramjet/airframe (including the three main parts of forebody/inlet, combustor and nozzle/afterbody) are developed, with area variation, mass addition, chemistry reaction, heat loss, wall friction and variable specific heat taken into consideration. The applicability of the program is validated by experimental data. Aiming at hydrogen fueled scramjet engine with variable-geometry combustor, the integrated scramjet/airframe configuration optimization design was performed with the constant dynamic pressure trajectory between flight Mach number of 3. 0 and 10. 0. The scramjet configuration with variable-geometry combustor is optimization designed; the corresponding specific impulse and thrust are obtained for different flight mach numbers (Ma=3—10). The hydrogen-fueled scramjet specific impulse and thrust data between flight Mach 3. 0—10. 0 are provided in this paper, which could be a important initial target basis for the further investigation of scramjet and scramjet -powered aircraft
scramjet integration design variable-geometry combustor specific impulse
Li Jianping Song Wenyan Wang Wei Luo Feiteng
School of Power and Energy,Northwestern Polytechnical University, Xian,710072,China School of Power and Energy, Northwestern Polytechnical University,Xian,710072, China School of Power and Energy, Northwestern Polytechnical University, Xian, 710072, China School of Power and Energy,Northwestern Polytechnical University, Xian, 710072, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
1088-1091
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）