Abstract
A numerical study on oscillatory flow past two cylinders in tandem is carried out. The Reynolds-averaged Navier-Stokes equations are solved using a finite element method (FEM) with a k-ω turbulence closure. The numerical model is validated against oscillatory flows past a single circular cylinder where the experimental data are available in literature. Then the numerical model is employed to simulate the flow around cylinders in a tandem arrangement. It is found that the distance between the cylinders affects the flow characteristics. Two parallel transverse vortex streets are observed for large distances and two oblique vortex streets for moderate distances. For small distances, only one vortex street can be found. The two cylinders behave like a single bluff body when the distance between the two cylinders is small. The effect of the distance on the force coefficients are investigated in this paper.
Similar content being viewed by others
References
An H.W., Cheng L., Zhao M. and Dong G.H. Numerical simulation of oscillatory flow around two circular cylinders of different diameters. Conference of OMAE2006
Chew, L.W., 2002, “Numerical modeling of oscillating flow around a circular cylinder”. Thesis of UWA
Justesen, P. 1991. A numerical study of oscillating flow around a circular cylinder, J. Fluid Mech., Vol.222, pp.157–196
Lin, X.W., Bearnan, P.W., Graham, J. M. R., 1996, “A numerical study of oscillatory flow about a circular cylinder for low values of beta parameter”, J. Fluids and Structures, Vol. 10, pp. 501–526
Maull, D.J., Milliner, M. G., 1978, Sinusoidal flow past a circular cylinder. Coastal Engineering, Vol. 2, pp. 149–168
Obasaju, E.D. Bearman, P.W. and Graham J.M.R., 1988, “A study of force circulation and vortex pattern around a circular cylinder in oscillatory flow”. J. Fluid Mech. Vol. 196, pp. 467–494
Wilcox, D. C., 1994, “Simulation of transition with a two-equation turbulence model” AIAA Journal, Vol. 32(2), pp. 247–255.
Williamson, C.H.K., 1985, “Evolution of a single wake behind a pair of bluff bodies”, J. Fluid Mech., Vol. 159, pp. 1–18.
Zhao, M., Cheng, L., Teng, B. and Dong, G.H., 2006, “Hydrodynamic forces in dual cylinders of different diameters in steady flow”, Submitted to J. Fluids and Structures.
Chew, L.W., 2002, “Numerical modeling of oscillating flow around a circular cylinder”. Thesis of UWA
Zhao, M., Cheng, L., Teng, B. and Liang, D.F., 2005, “Numerical simulation of viscous flow past two circular cylinder of different diameters”, Submitted to J Fluids and Structures
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
An, Hw., Cheng, L., Zhao, M. et al. Numerical simulation of the oscillatory flow around two cylinders in tandem. J Hydrodyn 18 (Suppl 1), 189–195 (2006). https://doi.org/10.1007/BF03400445
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03400445