学术论文

      高超声速炮弹气动数值模拟

      Numerical Simulation for Aerodynamic Characteristics of Hypersonic Projectile

      摘要:
      针对高超声速弹丸飞行阶段的计算研究中,除了对其进行气动热模拟之外,另一项重要任务就是气动力的计算问题,采用SST k-ω湍流模型,运用AUSM+格式对非定常三维可压缩流体进行了数值模拟,再现了高超声速条件下炮弹周围复杂的流动现象,得到了流场的分布规律.计算结果表明,在研究范围内,高超声速弹翼组合体数值计算结果与工程计算结果吻合较好,为进一步高超声速炮弹研究提供了技术参考.
      Abstract:
      In this paper, the calculation of hypersonic projectile flight phase is studied.Aiming at the aerodynamic calculation of hypersonic projectile, the numerical simulation of unsteady three dimensional compressible fluids is carried out by using AUSM+ scheme and SST turbulence model.The complex flow phenomena around the projectile under hypersonic conditions are reproduced, and the distribution of flow field is obtained.Cone-shape fin-body configuration hypersonic aerodynamic characteristic were obtained and it agreed with the engineering calculation results.The result provides a reference for the further study of high supersonic projectiles.
      作者: 黄玉才 李岩
      Author: HUANG Yu-cai LI Yan
      作者单位: 南京理工大学 能源与动力工程学院,南京,210094
      刊 名: 兵器装备工程学报 ISTIC
      年,卷(期): 2017, 38(5)
      分类号: V411
      在线出版日期: 2017年7月4日