Flow control through vortex shedding interaction on one cylinder downstream of another

DAKKA, Sam and PAYTON, Jonathan (2016). Flow control through vortex shedding interaction on one cylinder downstream of another. In: Second Internation Conference on Science, Engineering and Environment. Geomate International Society. (In Press)

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This study investigates the vortices produced between two 2d cylinders, and the relationship between the structures of the vortices produced at both cylinders when one is placed in the wake flow of another. CFD simulations using ANSYS Fluent were used to determine the coefficients of lift and drag, as well as the frequency of vortex shedding and size of vortices at three separate Reynolds numbers of 16000, 32000 and 65000 in different arrangements. Each arrangement of cylinders was compared against controls, which consisted of a single cylinder to determine the alteration of forces produced. Two trip wires at 7 different angles of 40, 45, 50, 55, 60, 65, and 70 degrees were then investigated at a Reynolds number of 65000 which was compared to the smooth cylinder control forces and frequency of vortex shedding. The most optimum angle of trip wires was then combined with linear cylinder arrangements also at a Reynolds number of 65000 for comparison with only the upstream cylinder utilizing the trip wires.

Item Type: Book Section
Additional Information: Proceedings of SEE, Osaka, Japan, 21-23 November 2016
Research Institute, Centre or Group: Materials and Engineering Research Institute > Engineering Research
Departments: Faculty of Science, Technology and Arts > Engineering and Mathematics
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Depositing User: Sam Dakka
Date Deposited: 21 Nov 2016 13:44
Last Modified: 28 Jan 2018 07:45
URI: http://shura.shu.ac.uk/id/eprint/14007

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