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A computer simulation of magnetic field generation by convection in the Earth's fluid outer core produces a time dependent field that, like the Earth's, is strongly dipole dominated outside the core and occasionally undergoes spontaneous dipole reversals. The computational challenge posed by this rapidly-rotating low-viscosity magnetohydrodynamic problem and the numerical method used are discussed.
Thomas Clune, Gary A. Glatzmaier, "Computational Aspects of Geodynamo Simulations", Computing in Science & Engineering, vol. 2, no. , pp. 61-67, May/June 2000, doi:10.1109/5992.841797
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