지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.12 Number.2
- 발행연도
- 2011.6
- 수록면
- 190 - 199 (10page)
이용수
초록· 키워드
오류제보하기
Unsteady flow simulations of complete helicopter configurations were conducted, and the flow fields and the aerodynamic interferences between the main rotor, fuselage, and tail rotor were investigated. For these simulations, a three-dimensional flow solver based on unstructured meshes was used, coupled with an overset mesh technique to handle relative motion among those components. To validate the flow solver, calculations were made for a UH-60A complete helicopter configuration at high-speed and low-speed forward flight conditions, and the unsteady airloads on the main rotor blade were compared to available flight test data and other calculated results. The results showed that the fuselage changed the rotor inflow distribution in the main rotor blade airloads. Such unsteady vibratory airloads were produced on the fuselage, which were nearly in-phase with the blade passage over the fuselage. The flow solver was then applied to the simulation of a generic complete helicopter configuration at various flight conditions, and the results were compared with those of the CAMRAD-II comprehensive analysis code. It was found that the main rotor blades strongly interact with a pair of disk-vortices at the outer edge of the rotor disk plane, which leads to high pulse airloads on the blade, and these airloads behave differently depending on the specific flight condition.
목차
Abstract
1. Introduction
2. Numerical Method
3. Results and Discussion
4. Concluding Remarks
Acknowledgments
References
참고문헌 (23)
참고문헌 신청
Ananthan, S. / 2008 / Hybrid unsteady simulation of helicopters: HUSH / 26th AIAA Applied Aerodynamics Conference
Bousman, W. G. / 2009 / UH-60 airloads program tutorial / American Helicopter Society 65th Annual Forum
Bousman, W. G. / 2005 / UH-60A Airloads Catalog
Bousman, W. G / 2003 / Aerodynamic Characteristics of SC1095 and SC1094 R8 Airfoils
Datta, A. / 2006 / CFD/CSD prediction of rotor vibratory loads in high-speed flight / Journal of Aircraft 43:1698~1709
Bousman, W. G. / 2009 / UH-60 airloads program tutorial / American Helicopter Society 65th Annual Forum
Bousman, W. G. / 2005 / UH-60A Airloads Catalog
Bousman, W. G / 2003 / Aerodynamic Characteristics of SC1095 and SC1094 R8 Airfoils
Datta, A. / 2006 / CFD/CSD prediction of rotor vibratory loads in high-speed flight / Journal of Aircraft 43:1698~1709
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UCI(KEPA) : I410-ECN-0101-2013-558-000575317