Conference Proceedings

Numerical investigations of flow over a confined circular cylinder

P Mathupriya, L Chan, H Hasini, A Ooi

Proceedings of the 21st Australasian Fluid Mechanics Conference, AFMC 2018 | Published : 2018

Abstract

© 2018 Australasian Fluid Mechanics Society. All rights reserved. The unsteady flow over a cylinder confined by two parallel walls using direct numerical simulation (DNS) is investigated. The effects of two parameters, namely the Reynolds number and the blockage ratio, are the main focus for this study. The three-dimensional flow is simulated where the circular cylinder is placed symmetrically in a planar channel with a blockage ratio of β = 0.5 at Re = 200, 300 and 500. Quantitative analysis of the flow is conducted where the lift, CL and drag coefficient, CD and Strouhal number, St are investigated as β and Re are systematically varied. In the present study, it is found that different inst..

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