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 email@example.com
Revised: 12 September 2002
Published online: 29 November 2002
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.
PACS: 47.27.Vf – Wakes / 47.20.-k – Hydrodynamic stability / 47.27.Rc – Turbulence control
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002