Wind tunnel studies of pressure distribution around a 5:1 rectangular cylinder

Nguyen, Dinh Tung; Owen, John; Hargreaves, David

Abstract

In this paper, a wind tunnel study is described focusing on analysing the pressure distribution and correlation around both static and dynamic 5:1 rectangular cylinders in smooth and turbulent flow. Results from the static tests highlighted the significant influences of the turbulence on the surface pressure distribution. For the dynamic section, the VIV was triggered by the motion-induced leading edge vortex; a strongly correlated flow feature close to the trailing edge was found to be responsible for an increase in the amplitude of the vortex-induced vibration. An increase in the turbulence effectively weakened the motion-induced leading edge vortex or removed the flow feature close to the trailing edge, which led to a large reduction in the VIV response.

Citation

Nguyen, D. T., Owen, J., & Hargreaves, D. Wind tunnel studies of pressure distribution around a 5:1 rectangular cylinder. Presented at 8th International Colloquium on Bluff Body Aerodynamics and Applications

• Conference Name: 8th International Colloquium on Bluff Body Aerodynamics and Applications
• End Date: Jun 11, 2016
• Acceptance Date: Mar 9, 2016
• Publication Date: Jun 11, 2016
• Deposit Date: Aug 12, 2016
• Publicly Available Date: Aug 12, 2016
• Peer Reviewed: Peer Reviewed
• Keywords: Bridge aeroelasticity, 5:1 ratio, Rectangular cylinder, Pressure distribution, Wind tunnel, Turbulence
• Public URL: https://nottingham-repository.worktribe.com/output/795642
• Contract Date: Aug 12, 2016