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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (9): 625746-625746.doi: 10.7527/S1000-6893.2021.25746

• Special Topic of NNW Progress and Application • Previous Articles     Next Articles

Progress on application of National Numerical Windtunnel Project for hypersonic

CHEN Qi1,2, CHEN Jianqiang1,2, YUAN Xianxu1,2, GUO Qilong1,2, WAN Zhao1,2, QIU Bo1,2, LI Chen1,2, ZHANG Yifeng1,2   

  1. 1. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    2. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2021-03-30 Revised:2021-05-06 Published:2021-06-08
  • Supported by:
    National Numerical Windtunnel Project

Abstract: With the fast development of CFD techniques in recent years, CFD numerical simulation software has been widely used in the development of aircrafts, and plays an increasingly important role in most stages of aerospace and other fields. The National Numerical Windtunnel (NNW) Project adheres to the principle of "using while building". By integrating the software of structural mechanics, flight mechanics, engineering thermodynamics, acoustics, optics, electromagnetics, multiphase fluid mechanics and other disciplines, the project is playing an active role in aerospace, transportation, energy and power, environmental protection and disaster mitigation, and other disciplines. This paper summarizes the achievements of using the NNW software for hypersonic boundary layer transition, turbulence and high-order schemes. Development of applicaion of the NNW software for the problems of complex flow interaction, dynamic stability and multidisciplinary coupling simulation is also discussed. Cases are displayed to demonstrate the functions and characteristics of NNW software, so as to boost the spread and application of the software nationwide.

Key words: National Numerical Windtunnel (NNW) Project, transition, turbulent flow, hypersonic, dynamic stablity, aeroservo elasticity

CLC Number: