Specical Topic of Numerical Optimization and Design of Aircraft Aerodynamic Shape

Aerodynamic optimization design of large civil aircraft using pressure distribution inverse design method based on discrete adjoint

  • LIU Fengbo ,
  • JIANG Cheng ,
  • MA Tuliang ,
  • LIANG Yihua
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  • 1. AVIC Aeronautics Computing Technique Research Institute, Xi'an 710065, China;
    2. COMAC Shanghai Aircraft Design and Research Institute, Shanghai 201210, China

Received date: 2019-08-12

  Revised date: 2019-09-02

  Online published: 2019-09-30

Abstract

From the engineering application point of view, the application of the discrete adjoint companion pressure distribution inverse design optimization method in the design of wide-body civil aircraft wing is studied. The optimization design idea of three-dimensional configuration combined with pressure distribution inverse design and adjoint optimization is proposed, which promotes the engineering of discrete adjoint aerodynamic optimization design method. Firstly, the three-dimensional pressure distribution inverse design is carried out for the CRM wing configuration, which verifies the accuracy and efficiency of the discrete adjoint pressure distribution inverse design in the three-dimensional problem. Secondly, based on the new optimization design idea proposed by the application, the pressure distribution inverse design constraint method is introduced on the basis of a wide-body full-body two-point aerodynamic optimization result, and the wing pressure distribution and the resistance creep increase characteristic of the low Mach number are improved. And achieved good drag reduction and resistance divergence characteristics to improve the engineering applicability of the optimized configuration.

Cite this article

LIU Fengbo , JIANG Cheng , MA Tuliang , LIANG Yihua . Aerodynamic optimization design of large civil aircraft using pressure distribution inverse design method based on discrete adjoint[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020 , 41(5) : 623372 -623372 . DOI: 10.7527/S1000-6893.2019.23372

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