国防科技大学 航天与材料工程学院，湖南 长沙 410073，zhaoyilong2007@126.com
赵玉新
国防科技大学 航天与材料工程学院，湖南 长沙 410073
王振国
国防科技大学 航天与材料工程学院，湖南 长沙 410073
易仕和
国防科技大学 航天与材料工程学院，湖南 长沙 410073
提出了基于B-Spline曲线和特征线方法的超声速型面可控喷管设计方法，通过设置喷管轴向马赫数分布可以灵活地调整喷管的型面形状。数值验证结果表明，该方法不仅可以设计出高品质的喷管出口流场，而且能够实现喷管型面的灵活调整，可以获得长度与最短长度喷管一致，但流场品质更优的喷管。
国家自然科学基金资助项目（11072264）
College of Aerospace and Materials Engineering，National University of Defense Technology，Changsha 410073，China,zhaoyilong2007@126.com
ZHAO Yuxin
College of Aerospace and Materials Engineering，National University of Defense Technology，Changsha 410073，China
WANG Zhenguo
College of Aerospace and Materials Engineering，National University of Defense Technology，Changsha 410073，China
YI Shihe
College of Aerospace and Materials Engineering，National University of Defense Technology，Changsha 410073，China
A designing method of supersonic nozzle with controllable contour based on B-Spline curve and characteristic line algorithm is proposed. The contour of the nozzle was adjusted by assigning the distribution of Mach number on the nozzle’s axis. The reliability of the designing method was validated by numerical simulation, which shows that the outflow of the nozzle with high quality can be produced and the contour can be adjusted freely. The result also shows that the nozzle designed by the proposed method can produce better flow than the minimal length nozzle(MLN) with the same length.