Convection Currents within a Rotating Earth

Details Convection Currents within a Rotating Earth Convection Currents within a Rotating Earth

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990em%26p...48..251l&link_type=abstract

Earth, Moon and Planets, Volume 48, Issue 3, pp.251-278

Physics

Scientific paper

We establish the equations of motion for a fluid spherical shell which constitutes the upper-most layer of a rotating body and which is heated from below because of radiogenic decay occurring in the lower layers. We solve these equations in terms of series of products of Bessel functions and Gegenbauer polynomials. By the step-wise solution of an infinite-order determinant equation we determine those values for the Taylor and Rayleigh numbers of the flow, up to the 1016 order, that will give rise to convective cells in the liquid layer. Using these eigenvalues, we solve linear systems of equations to determine the coefficients of the series solutions.

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