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
- 한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제35권 제7호
- 발행연도
- 2011.11
- 수록면
- 957 - 965 (9page)
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The wakes of a cylindrical body have been investigated. The cylindrical body was attached with a thin film. The film is made of silicon with configurations of 50mm(W) x 150mm(L) x 0.3mm(T). The cylinder wakes have been measured with PIV experiments under the conditions with and without the thin film. The diameter of the installed cylinder body is 30mm and the Reynolds numbers are 2730, 6160 and 9750 with the diameter. The measurement system consists of an Ar-ion laser(6W), a high speed camera(1024 x 992 pixel, 500fps) and a host computer. FFT analyses have been carried out using the velocity vectors obtained by PIV measurements at the point X/D=1.52 and Z/D=0.52. For understanding the three-dimensional flow structures, a new Volumetric PTV(particle tracking velocimetry) has been constructed, in which the same four high-resolution cameras have been used. It has been verified that the flexible film suppresses or damps the vortices separated from the cylinder body, which makes the cylinder"s wakes stable. With increase of Re numbers the intensity of the dominant frequency of the wakes become smaller.
목차
Abstract
1. Introduction
2. Experiments
3. Conclusions
Acknowledgments
References
참고문헌 (18)
참고문헌 신청
1. [학술지(정기간행물)] - P.W. Bearman / 1984 / Vortex shedding from oscillating bluff bodies / Annual Review of Fluid Mechanics 16 : 195 ~ 222
2. [학술지(정기간행물)] - G.Parkinson / 1989 / Phenomena and modeling of flow-Induced vibrations of bluff bodies.Progress in Aerospace Sciences 26 : 169 ~ 224
3. [학술지(정기간행물)] - T.Sarpkaya / 1989 / Hydrodynamic damping,flowinduced oscillations,and biharmonic response / ASME Journal of Offshore Mechanics and Arctic Engineering 117 : 232 ~ 238
4. [학술지(정기간행물)] - C.H.K. Williamson / 2004 / Vortexinduced vibrations / Annual Review of Fluid Mechanics 36 : 413 ~ 455
5. [학술지(정기간행물)] - C.H.K. Williamson / 2008 / A brief review of recent results in vortex-induced vibrations / Journal of Wind Engineering and Industrial Aerodynamics 96 : 713 ~ 735
2. [학술지(정기간행물)] - G.Parkinson / 1989 / Phenomena and modeling of flow-Induced vibrations of bluff bodies.Progress in Aerospace Sciences 26 : 169 ~ 224
3. [학술지(정기간행물)] - T.Sarpkaya / 1989 / Hydrodynamic damping,flowinduced oscillations,and biharmonic response / ASME Journal of Offshore Mechanics and Arctic Engineering 117 : 232 ~ 238
4. [학술지(정기간행물)] - C.H.K. Williamson / 2004 / Vortexinduced vibrations / Annual Review of Fluid Mechanics 36 : 413 ~ 455
5. [학술지(정기간행물)] - C.H.K. Williamson / 2008 / A brief review of recent results in vortex-induced vibrations / Journal of Wind Engineering and Industrial Aerodynamics 96 : 713 ~ 735
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UCI(KEPA) : I410-ECN-0101-2013-559-001320231