TY - GEN
T1 - The effect of incidence angle variation of a square cylinder on its dynamic response and wake states
AU - Zhao, J.
AU - Nemes, A.
AU - Lo Jacono, D.
AU - Sheridan, J.
PY - 2010
Y1 - 2010
N2 - An experimental investigation has been carried out in a water channel on the transverse flow-induced vibration of a square cross-section cylinder at two different angles of incidence to the free-stream, α = 0° (square) and 45° (diamond). The oscillation amplitude and frequency response of the cylinder were measured over a range of reduced velocity, U*, and compared to the response of a circular cylinder. The phase of the lift force with respect to the cylinder's displacement was determined. Additionally, particle image velocimetry (PIV) was used to identify the transition of the wake structure from 2S to 2P mode for the diamond case. The results show that the square orientation follows a galloping response as expected, while the diamond behaves similarly to that of a circular cylinder undergoing vortex-induced vibration.
AB - An experimental investigation has been carried out in a water channel on the transverse flow-induced vibration of a square cross-section cylinder at two different angles of incidence to the free-stream, α = 0° (square) and 45° (diamond). The oscillation amplitude and frequency response of the cylinder were measured over a range of reduced velocity, U*, and compared to the response of a circular cylinder. The phase of the lift force with respect to the cylinder's displacement was determined. Additionally, particle image velocimetry (PIV) was used to identify the transition of the wake structure from 2S to 2P mode for the diamond case. The results show that the square orientation follows a galloping response as expected, while the diamond behaves similarly to that of a circular cylinder undergoing vortex-induced vibration.
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M3 - Conference contribution
AN - SCOPUS:84863068914
SN - 9781617829130
T3 - 17th Australasian Fluid Mechanics Conference 2010
SP - 724
EP - 727
BT - 17th Australasian Fluid Mechanics Conference 2010
T2 - 17th Australasian Fluid Mechanics Conference 2010, 17AFMC
Y2 - 5 December 2010 through 9 December 2010
ER -