Abstract
This paper describes the fluid force acting on the two-dimensional oscillating circular cylinder in the locking-in region. The experiment was carried out in an N. P. L, blow-down type wind-tunnel with a working section of 500 mm×500 mm×2000mm, and with the Reynolds number of 1.9×104. The cylinder was then forced to oscillate sinusoidally in the lift direction. The power spectrum of the fluctuating velocity in the wake behind a circular cylinder was measured to show the locking-in region in the present experiment. The time-mean pressure distribution and fluctuating pressure distribution on the circular cylinder were measured for the displacement in the vibration. Consequently it was found that the mean drag and fluctuating lift increase and become maximum in the locking-in region, while, the base pressure in the rear surface (θ=180°) of the cylinder becomes low and attains minimum.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
