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논문 기본 정보

자료유형
학술저널
저자정보
Takashi Saitoh (Tohoku University) Hyoungjin Kim (Kyung Hee University) Keizo Takenaka (Tohoku University) Kazuhiro Nakahashi (Tohoku University)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.18 Number.3
발행연도
2017.9
수록면
403 - 413 (11page)
DOI
10.5139/IJASS.2017.18.3.403

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초록· 키워드

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Dual-point aerodynamic design optimization is conducted for DLR-F6 wing-body-nacelle-pylon configuration adopting an efficient surface mesh movement method for complex junction geometries. A three-dimensional unstructured Euler solver and its discrete adjoint code are utilized for flow and sensitivity analysis, respectively. Considered design conditions are a lowlift condition and a cruise condition in a transonic regime. Design objective is to minimize drag and reduce shock strength at both flow conditions. Shape deformation is made by variation of the section shapes of inboard wing and pylon, nacelle vertical location and nacelle pitch angle. Hicks-Henne shape functions are employed for deformation of the section shapes of wing and pylon. By the design optimization, drag coefficients were remarkably reduced at both design conditions retaining specified lift coefficient and satisfying other constraints. Two-point design results show mixed features of the one-point design results at low-lift condition and cruise conditions.

목차

Abstract
1. Introduction
2. Junction Treatment
3. Design Tools
4. Design Results
5. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2018-558-001343066