【作者】 郑亚明； 宋文艳； 冯大毛；

【Author】 ZHENG Ya-ming~1,SONG Wen-yan~2,FENG Da-mao~1 (1.The 605~(th) Research Institute,AVIC I,Jingmen 448035,China; 2.School of Engine and Energy,Northwestern Polytechnical University,Xi’an 710072,China)

【机构】 中国航空工业第605研究所； 西北工业大学动力与能源学院；

【摘要】 提出了一体化超燃冲压发动机/机体推力计算的两种方法。基于商用软件FLUENT,对所设计的超燃冲压发动机/机体一体化二维构型在设计点(飞行Ma=6)和非设计点(飞行Ma=5,7)流场和性能进行了初步计算评估。研究结果表明:发动机工作时,随着飞行马赫数的增加,净推力逐渐减小,阻力和俯仰力矩系数逐渐增大。两种推力计算方法差别较小。更多还原

【Abstract】 Two kinds of numerical methods about scramjet/frame integration thrust are given.Based on the business software FLUENT,the flow-field and performance of the scramjet/frame integration two-dimensional configuration,at design point(flight Mach number Ma=6) and off-design point(flight Mach number Ma=4,5,7) are evaluated preliminarily.The research results show that the net thrust is decreased with the increasing Mach number,drag and pitching moment coefficient are increased gradually. Two kinds of numerical methods’ difference about thrust is small.更多还原