TY - JOUR
T1 - Long-duration time-resolved PIV to study unsteady aerodynamics
AU - Taylor, Zachary J.
AU - Gurka, Roi
AU - Kopp, Gregory A.
AU - Liberzon, Alex
N1 - Funding Information:
Manuscript received September 14, 2009; revised February 6, 2010; accepted February 8, 2010. Date of publication May 17, 2010; date of current version November 10, 2010. This work was supported in part by the Canada Foundation for Innovation, by the Ontario Research Fund, and by the University of Western Ontario to develop the Advanced Facilities for Avian Research under the leadership of Dr. S. MacDougall-Shackleton. The work of G. A. Kopp was supported by the Canada Research Chairs Program. The Associate Editor coordinating the review process for this paper was Dr. George Xiao.
PY - 2010/12
Y1 - 2010/12
N2 - A time-resolved particle image velocimetry (PIV) system has been developed at the University of Western Ontario, London, ON, Canada, with long-recording-time capabilities. This system is uniquely suited to the study of unsteady aerodynamics and hydrodynamics, such as avian aerodynamics or bluff-body oscillations. Measurements have been made on an elongated bluff body through the initial build-up phase of flutter. The possibilities to study this instability, which was responsible for the collapse of the Tacoma Narrows Bridge, are significantly broadened by the use of this system. The long-time recording capability of the system allows for novel results since it yields data that are spatially and temporally resolved over a long record length. The buildup of flutter is shown to exhibit complex dynamics that are heavily influenced by the flow-induced motion of the body. Features of the wake turbulence as a function of time are presented and shown to substantially vary.
AB - A time-resolved particle image velocimetry (PIV) system has been developed at the University of Western Ontario, London, ON, Canada, with long-recording-time capabilities. This system is uniquely suited to the study of unsteady aerodynamics and hydrodynamics, such as avian aerodynamics or bluff-body oscillations. Measurements have been made on an elongated bluff body through the initial build-up phase of flutter. The possibilities to study this instability, which was responsible for the collapse of the Tacoma Narrows Bridge, are significantly broadened by the use of this system. The long-time recording capability of the system allows for novel results since it yields data that are spatially and temporally resolved over a long record length. The buildup of flutter is shown to exhibit complex dynamics that are heavily influenced by the flow-induced motion of the body. Features of the wake turbulence as a function of time are presented and shown to substantially vary.
KW - Image processing
KW - open-source software
KW - optical velocity measurement
KW - particle image velocimetry (PIV)
KW - unsteady aerodynamics and hydrodynamics
UR - http://www.scopus.com/inward/record.url?scp=78149467227&partnerID=8YFLogxK
U2 - 10.1109/TIM.2010.2047149
DO - 10.1109/TIM.2010.2047149
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AN - SCOPUS:78149467227
SN - 0018-9456
VL - 59
SP - 3262
EP - 3269
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 12
M1 - 5464317
ER -