Design and computational study of waverider configuration with high performance
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摘要: 采用数值模拟方法研究在设计点(马赫数6,迎角0°)锥导乘波体气动外形的设计方法及其基本气动特性,以及在非设计点时该乘波体的气动特性,即各个气动系数随迎角和马赫数的变化特性.研究表明:基于无粘锥形流的乘波体气动外形的反设计方法是成功的;在设计点附近选取合适的半基准圆锥激波角并考虑粘性影响时,可得到乘波体最大升阻比为3.36;给出了采用这一布局的单级入轨运载器的可行的飞行控制方案;分析提出了进一步提高该乘波体气动布局升阻比的有效途径.Abstract: The design method and basic aerodynamic characteristics were studied for cone-derived waverider at Mach 6 and attack angle 0. Off-design performances of the designed waverider were also discussed, namely lift, drag and lift-drag-ratio changing with Mach number and attack angle. All the research works were finished by numerical simulation method. Results show that: the inverse-design method for the waverider configuration is successful based on inviscid conical shock wave. The biggest lift-drag ratio 3.36 considering viscous effects is obtained at Mach 6 when a proper base conical shock wave angle is chosen. A feasible flight control scheme is presented for the SSTO (single-stage-to-orbit) vehicle adopting this configuration. The favorable method of improving the lift-drag ratio of the figuration is brought forward.
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[1] Blankson M. Air-breathing hypersonic cruise prospects for mach 4-7 waverider . Journal of Engineering for Gas Turbines and Power, 1994,116(1):104~115 [2]Murice L,Rasmussen. Waverider configurations derived from inclined circular and elliptic cones[J].Spacecrift,1980,17(6):537~545 [3] 王 卓,钱翼稷. 乘波机外形设计[J]. 北京航空航天大学学报, 1999,25(2):180~183 Wang Zhuo, Qian Yiji. Waverider configuration design[J]. Journal of Beijing University of Aeronautics and Astronautics,1999,25(2):180~183(in Chinese) [4] 海 斯 W D ,普洛布斯坦 R F. 高超音速流理论[M]. 严宗毅,孙菽芬译. 北京:科学出版社,1979 Hayes W D, Probstein R F. Hypersonic flow theory[M]. Translated by Yan Zongyi, Sun Shufen. Beijing:Science Press, 1979(in Chinese) [5] Takeshi Miyagawa,Toshihiro Ohta,Riichi Matsuzaki.Experimental studies on several waverider configuration[J]. Aero Space Sci,1997,39(126):417~427 [6]Shi Yijan, Miles John B,Kakkattukuzhy Isaac.Computational fluid dynamics simulation of turbulent waverider flow field with sideslip [J]. Journal of Spacecraft and Rockets,1997,34(1):77~82 -
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