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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

THE EFFECT OF FINITE AMPLITUDE NON-PLANAR FLOW OSCILLATIONS UPON THE ONSET OF RAYLEIGH-BENARD CONVECTION

Get access (open in a dialog) DOI: 10.1615/IHTC10.3610
pages 79-83

Abstract

Finite amplitude non-planar shear oscillations are shown to have a significant stabilizing effect upon the onset of Rayleigh-Benard convection on the basis of a linear stability analysis. The value of Rac increases monotonically with Pr and Re, at least up to Re = 100 (the maximum value calculated so far). For Pr = 10 and Re = 100, Rac is roughly 16 times the critical value without shear. The dependence of Rac upon the frequency and other flow parameters is discussed. The results have been obtained numerically by means of a Fourier-Galerkin expansion and the use of Floquet theory.