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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2015, Vol. 36 ›› Issue (1): 159-175.doi: 10.7527/S1000-6893.2014.0214

• Experiments and Numerical Simulations • Previous Articles     Next Articles

Progress in numerical simulation techniques of hypersonic aerodynamic problems

WANG Jiangfeng, WU Yizhao, JI Weidong, FAN Xiaofeng, ZHAO Faming, LYU Zhenjun   

  1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2014-08-15 Revised:2014-09-02 Online:2015-01-15 Published:2014-09-24
  • Supported by:

    National High-tech Research and Development Program of China

Abstract:

Hypersonic flow field has complex flow characteristics in which real gas effects, magnetic fluid interference effects and fluid/thermal/structural coupling effects have an important impact on the aerodynamic force. They extend fluid dynamics to molecular dynamics, electromagnetic fluid dynamics, fluid/structure interaction and other interdisciplinary fields, which have brought great challenges to the numerical simulation methods. Aimed at hot issues of hypersonic aerodynamic force and aerodynamic heat, high-temperature effects, low-density flow effect, magnetic fluid interference effect and fluid/thermal/structural coupling effect have been significantly emphasized. Several examples and the corresponding numerical solution techniques are given in this paper. Three methods of aerodynamic heating are compared, i.e., pure engineering method, pure numerical method and Prandtl boundary layer theory-based method. For fluid/thermal/structural coupling problem, analyses are carried out in two aspects, i.e., coupling model and coupling calculation method. Finally, several problems of numerical simulation technologies which need to be emphasized in the future are figured out.

Key words: hypersonic, numerical simulation, aerodynamic heating, magnetohydrodynamics, aerothermoelasticity, fluid/thermal/structural coupling

CLC Number: