计算物理 ›› 2010, Vol. 27 ›› Issue (6): 861-868.

• 研究论文 • 上一篇    下一篇

高速动能弹温度场数值模拟

陈新虹, 周志超, 赵润祥, 许厚谦   

  1. 南京理工大学动力工程学院, 江苏 南京 210094
  • 收稿日期:2009-11-24 修回日期:2010-03-14 出版日期:2010-11-25 发布日期:2010-11-25
  • 作者简介:陈新虹(1983-),女,湖北宜昌,博士生,主要从事计算空气动力学方面的研究,江苏南京孝陵卫200号,南京理工大学动力工程学院研究生办公室210094.
  • 基金资助:
    十一·五国防预研项目

Temperature Simulation of Supersonic & Hypersonic Kinetic Energy Projectiles

CHEN Xinhong, ZHOU Zhichao, ZHAO Runxiang, XU Houqian   

  1. School of Power Engineering, NUST, Nanjing 210094, China
  • Received:2009-11-24 Revised:2010-03-14 Online:2010-11-25 Published:2010-11-25

摘要: 随着兵器发射技术和空气动力学技术的发展,动能弹的发射初速和飞行状态正从超声速向高超声速发展,由此产生了气动热问题.准确预测动能弹温度场是其气动力和热防护设计的关键技术.采用CFD预测温度场的方法,包括平衡流流动控制方程及差分格式,构造平衡流通量Jacob矩阵,在差分格式矢通量分裂过程中嵌入平衡流真实气体模型模拟温度场,获得平衡流气体状态方程.对典型高速动能弹热环境进行验证,考察方法的合理性.对设计的一种新型高超声速动能弹温度场进行数值模拟,为其气动设计及热防护提供了较可靠的数据.

关键词: 超声速, 高超声速, 动能弹, 气动热, 数值模拟

Abstract: A method with CFD technology is used for accurate prediction of temperature field of supersonic and hypersonic kinetic energy projectiles.It includes equilibrium flow governing equations and difference scheme,equilibrium flow Jacobian matrixs and equilibrium gas state equations.A real gas equilibrium air model is used to calculate temperature in vector flux split in a difference scheme.Thermal environment for typical high-speed kinetic energy projectile is validated.Rationality of the method is considered.Temperature field of a designed hypersonic kinetic energy projectile is simulated.Reliable numerical data for projectile aerodynamic design and aerodynamic heat protection are provided.

Key words: supersonic, hypersonic, kinetic energy projectile, aerodynamic heat, numerical simulation

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