TY - GEN
T1 - Numerical study of passive control of flow-induced oscillation of cylinder with symmetric strips
AU - Ma, Chunhui
AU - Wan, Decheng
AU - Hu, Changhong
N1 - Publisher Copyright:
© 2021 by the International Society of Offshore and Polar Engineers (ISOPE).
PY - 2021
Y1 - 2021
N2 - The effects of symmetric strips on the flow-induced oscillation (FIO) of a cylinder in a uniform flow are investigated numerically. A pair of symmetric smooth strips are attached parallelly to a cylinder at different angles α from the frontal stagnation point. One degree of freedom cylinder movement is only allowed in the direction perpendicular to the incoming flow. The vibration is suppressed for α = 30°, and galloping is observed for α = 60°. Regarding wake dynamics, the vortex shedding in the galloping range is significantly different from the traditional vortex-induced vibration (VIV) vortex shedding mode, and the number of vortices released per cycle is much greater (at most twelve).
AB - The effects of symmetric strips on the flow-induced oscillation (FIO) of a cylinder in a uniform flow are investigated numerically. A pair of symmetric smooth strips are attached parallelly to a cylinder at different angles α from the frontal stagnation point. One degree of freedom cylinder movement is only allowed in the direction perpendicular to the incoming flow. The vibration is suppressed for α = 30°, and galloping is observed for α = 60°. Regarding wake dynamics, the vortex shedding in the galloping range is significantly different from the traditional vortex-induced vibration (VIV) vortex shedding mode, and the number of vortices released per cycle is much greater (at most twelve).
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M3 - Conference contribution
AN - SCOPUS:85115233943
SN - 9781880653821
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 2049
EP - 2055
BT - Proceedings of the 31st International Ocean and Polar Engineering Conference, ISOPE 2021
PB - International Society of Offshore and Polar Engineers
T2 - 31st International Ocean and Polar Engineering Conference, ISOPE 2021
Y2 - 20 June 2021 through 25 June 2021
ER -