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
- 발행연도
- 2013.3
- 수록면
- 91 - 97 (7page)
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초록· 키워드
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In the present study, the effects of contaminant accumulation and surface roughness on the aerodynamic performance of wind turbine blade sections were numerically investigated by using a flow solver based on unstructured meshes. The turbulent flow over the rough surface was modeled by a modified κ-ω SST turbulence model. The calculations were made for the NREL S809 airfoil with varying contaminant sizes and positions at several angles of attack. It was found that as the contaminant size increases, the degradation of the airfoil performance becomes more significant, and this trend is further amplified near the stall condition. When the contaminant is located at the upper surface near the leading edge, the loss in the aerodynamic performance of the blade section becomes more critical. It was also found that the surface roughness leads to a significant reduction of lift, in addition to increased drag.
목차
1. 서론
2. 수치 해석 방법
3. 결과 및 고찰
4. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
1. [학술지(정기간행물)] - Corten G.P. / 2001 / Insects Can Halve Wind-turbine Power / Nature 412 (6842) : 42 ~ 43
2. [학술대회논문] - Lee, S. / 2000 / Investigation of Factors that Influence Iced-airfoil Aerodynamics, AIAA 2000-0099 / 38th Aerospace Sciences Meeting & Exhibit
3. [학술지(정기간행물)] - Menter, F.R. / 1994 / Two-equation Eddy Viscosity Turbulence Models for Engineering Applications / AIAA Journal 32 (8) : 1598 ~ 1605
4. [학술지(정기간행물)] - Langtry, R.B. / 2009 / Correlation-based Transition Modeling for Unstructured Parallelized Computational Fluid Dynamics Codes / AIAA Journal 47 (12) : 2894 ~ 2906
5. [학술지(정기간행물)] - Antti, H. / 1998 / Extension of κ - ω Shear-Stress Transport Turbulence Model for Rough-Wall Flows / AIAA Journal 36 (9) : 1728 ~ 1729
2. [학술대회논문] - Lee, S. / 2000 / Investigation of Factors that Influence Iced-airfoil Aerodynamics, AIAA 2000-0099 / 38th Aerospace Sciences Meeting & Exhibit
3. [학술지(정기간행물)] - Menter, F.R. / 1994 / Two-equation Eddy Viscosity Turbulence Models for Engineering Applications / AIAA Journal 32 (8) : 1598 ~ 1605
4. [학술지(정기간행물)] - Langtry, R.B. / 2009 / Correlation-based Transition Modeling for Unstructured Parallelized Computational Fluid Dynamics Codes / AIAA Journal 47 (12) : 2894 ~ 2906
5. [학술지(정기간행물)] - Antti, H. / 1998 / Extension of κ - ω Shear-Stress Transport Turbulence Model for Rough-Wall Flows / AIAA Journal 36 (9) : 1728 ~ 1729
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UCI(KEPA) : I410-ECN-0101-2014-420-003007048