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DBpiaIt was analyzed relation between the transversely oscillation frequency of circular cylinder and the vortex shedding frequency. Thw two dimensional unsteady compressible Navier-Stokes equation was calculated by OHOC(Optimized High-Order Compact) schem...
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RISS 인기검색어
https://www.riss.kr/link?id=A60072368
- 저자
- 발행기관
- 학술지명
- 권호사항
-
발행연도
2010
-
작성언어
Korean
- 주제어
-
KDC
559
-
자료형태
학술저널
- 발행기관 URL
-
수록면
8-11(4쪽)
- 제공처
-
0
상세조회 -
0
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부가정보
다국어 초록 (Multilingual Abstract)
It was analyzed relation between the transversely oscillation frequency of circular cylinder and the vortex shedding frequency. Thw two dimensional unsteady compressible Navier-Stokes equation was calculated by OHOC(Optimized High-Order Compact) scheme. The flow conditions are Mach number of 0.3 and Reynods number of 1000. When the forced frequencies are near the natural Strouhal number of the wakes around a stationary circular cylinder, the history of the lift and drag coefficients has the characteristics of lock-on phenomenon, which means that the coefficients have one primary frequency and are amplified by th forced oscillation. In the non lock-on region, the coefficients have one primary frequency and another resonance frequency by the forced oscillation.
It was analyzed relation between the transversely oscillation frequency of circular cylinder and the vortex shedding frequency. Thw two dimensional unsteady compressible Navier-Stokes equation was calculated by OHOC(Optimized High-Order Compact) scheme. The flow conditions are Mach number of 0.3 and Reynods number of 1000. When the forced frequencies are near the natural Strouhal number of the wakes around a stationary circular cylinder, the history of the lift and drag coefficients has the characteristics of lock-on phenomenon, which means that the coefficients have one primary frequency and are amplified by th forced oscillation. In the non lock-on region, the coefficients have one primary frequency and another resonance frequency by the forced oscillation.
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