http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Tongbiao (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Aerodynamic Design of the Supersonic Aircraft Wing-Shape and Wing-Twist Optimization
Li Li,Junqiang Bai,Tongbiao Guo,Xiaolong He,Ziyuan Fu 한국항공우주학회 2018 International Journal of Aeronautical and Space Sc Vol.19 No.2
This paper builds an aerodynamic optimization design system by coupling the free form deformation parameterization technique,thedynamicmeshtechniquebasedoninversedistanceweightinginterpolationmethodandparticleswarmoptimization algorithm,Krigingsurrogatemodel,withthecomputationalfluiddynamicssolverbasedonReynolds-averagedNavier–Stokes equations. And it carries out aerodynamic optimization designs with a supersonic transport aircraft configuration. The wing shape is parameterized by defining 60 design variables and the wing twist is by four design variables. Meanwhile, the wing thickness constraints are considered. Afterwards, a single-point optimization design aiming at minimum of the supersonic cruise drag is conducted, and in order to consider the transonic cruise condition, a multipoint aerodynamic optimization design aiming at minimum of a weighted drag for the supersonic cruise drag and transonic cruise drag is performed. The analyses of optimization results illustrate the specific drag reduction, the characteristics of pressure distributions for both the supersonic cruise condition and transonic cruise condition, and how the shock wave region and strength have improved on thesupersoniccruisecondition.Theoptimizationdesignthispaperpresentsrealizingthedragreductionisquitepracticaland effective, which is instructive in supersonic aircraft design.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
