Eur. Phys. J. B 30, 265-274 (2002)
https://doi.org/10.1140/epjb/e2002-00378-3

Numerical simulation and experiments of a control method to suppress the Bénard von Kármán instability

LEAF-NL, Departamento de Ingeniería Mecánica Universidad de Chile, Casilla 2777, Santiago, Chile

Corresponding author: ^a rohernan@cec.uchile.cl

Received: 7 March 2002
Revised: 12 September 2002
Published online: 29 November 2002

Abstract

We report both two-dimensional numerical simulations and experimental results that confirm the robustness of a new method for inhibiting vortex shedding associated to the Bénard–von Kármán (BvK) instability in the wake of a cylinder. Using the SIMPLER algorithm on a 2D channel, we solve the Navier-Stokes equations and we show that pressure suction at the front stagnation point of a circular cylinder, modelled here through a point sink located at the front stagnation point, can completely suppress the Bénard–von Kármán instability for super-critical Reynolds numbers. Comparison with recent experimental results are in close agreement.