北京航空航天大学学报 ›› 2009, Vol. 35 ›› Issue (8): 938-941.

• 论文 • 上一篇    下一篇

飞行器表面三维流场与固壁温度场的耦合分析

吕建伟, 王 强   

  1. 北京航空航天大学 能源与动力工程学院, 北京 100191
  • 收稿日期:2008-07-08 出版日期:2009-08-31 发布日期:2010-09-16
  • 作者简介:吕建伟(1978-),男,河北秦皇岛人,博士生,ljw@sjp.buaa.edu.cn.

Coupled analysis on flow field-temperature distribution of aircraft-skin

Lü Jianwei, Jianwei Wang   

  1. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2008-07-08 Online:2009-08-31 Published:2010-09-16

摘要: 分析了飞行器表面温度场形成的物理机制,建立了飞行器蒙皮温度场耦合计算的理论模型,较为完整的考虑了各种热源对飞行器蒙皮温度的作用.采用有限体积法和重整化群RNG(Renormalization Group)k-ε湍流模型对流场求解N-S方程,蒙皮固壁中采用热传导模型,采用离散坐标法DOM(Discrete Ordinates Method)计算蒙皮固体壁面对外界大气的辐射.通过数值计算研究了飞行高度、马赫数和内热源对蒙皮温度分布的影响,以及高度及马赫数对飞行器表面气动加热的作用.结果表明,该方法适合考虑飞行器外部流场、固壁等多种热源作用的温度场数值模拟.

Abstract: An analysis of the aircraft skin temperature field of the physical mechanism and the establishment of the aircraft skin temperature coupling calculation of the theoretical model were presented. A more complete factor of the various sources of heat on the surface skin of the aircraft was considered, including the aerodynamic heating, hot engine parts and various parts of the conduction, convection and radiation each other. Thus, the calculation model of three-dimensional flow field coupled with the solid wall was developed: skin used in solid-wall heat conduction model, and skin on atmospheric radiation used discrete ordinate method (DOM). Finally, the finite volume method and RNG k-ε turbulence model were employed to solve N-S equation. By numerical calculation method, the external and internal environment coupled heat transfer on aircraft skin was studied. The results show that the methodology is appropriate for numerical simulation of aircraft-skin temperature field.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发