Computational studies on pressure distribution around a bending 5:1 rectangular cylinder

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

Abstract

This paper describes the development and testing of a numerical model, based around the Large Eddy Simulation model, of a flexible 5:1 rectangular cylinder. We report on the vortex-induced vibration (VIV) of the bending cylinder, which is an analogue for a flexible bridge deck. Compared with a 3D heaving sectional model, distinct differences in surface pressure distributions and Strouhal number in the span-wise direction were found. In addition, certain span-wise flow features were thought to trigger the lock-in when the flexible model underwent the bending VIV response.

Citation

Nguyen, D. T., Hargreaves, D., & Owen, J. Computational studies on pressure distribution around a bending 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, CFD, Fluid-structure interation
• Public URL: https://nottingham-repository.worktribe.com/output/795630
• Contract Date: Aug 12, 2016