Fluctuating forces on a rigid circular cylinder in confined flow
- 7 December 1976
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 78 (3), 561-576
- https://doi.org/10.1017/s0022112076002607
Abstract
The fluctuating lift and drag acting on a long, rigidly supported circular cylinder placed symmetrically in a narrow rectangular duct were investigated for various blockage percentages over a wide range of Reynolds numbers around the critical value. The data obtained permit a full assessment of the effect of confinement on the mean-drag coefficient, the root-mean-square values of both the drag and the lift fluctuations, the Strouhal number of the dominant vortex shedding, and the Reynolds number marking transition from laminar to turbulent flow separation. Besides experimental information on a subject on which little is known so far, the paper provides a basis for the deduction of better correction procedures concerning the effects of blockage.This publication has 1 reference indexed in Scilit:
- Fluctuating Lift and Drag Acting on a Cylinder in a Flow at Supercritical Reynolds NumbersJournal of the Aerospace Sciences, 1960