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Finite-amplitude thermal convection in a spherical shell (1974)

Young, R. E.

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Publication Date: 2011-08-16

Description: The properties of finite-amplitude thermal convection for a Boussinesq fluid contained in a spherical shell are investigated. All nonlinear terms are retained in the equations, and both axisymmetric and nonaxisymmetric solutions are studied. The velocity is expanded in terms of poloidal and toroidal vectors. Spherical surface harmonics resolve the horizontal structure of the flow, but finite differences are used in the vertical. With a few modifications, the transform method developed by Orszag (1970) is used to calculate the nonlinear terms, while Green's function techniques are applied to the poloidal equation and diffusion terms.

Keywords: THERMODYNAMICS AND COMBUSTION

Type: Journal of Fluid Mechanics; 63; May 15

Format: text

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