Abstract
A numerical solution of the differential equations governing the stability of the wide-gap flow between two concentric cylinders is presented, taking into account the presence of a radial temperature gradient between the two cylinders when they are maintained at different temperatures. The critical Taylor number Tc and the critical wavenumber ac are shown graphically for different values of η (the ratio of the radii of two cylinders), μ≤O (the ratio of the angular velocities of the two cylinders) and the positive and negative temperature gradient given by a parameter ± N ( =Ra/T, where Ra =Rayleigh number). The results are discussed in terms of the parameters η, μ and N.
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