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Papers in physics
versión On-line ISSN 1852-4249
Resumen
RAMOS, I. C y BRIOZZO, C. B. Adapting a Fourier pseudospectral method to Dirichlet boundary conditions for Rayleigh-Benard convection. Pap. Phys. [online]. 2015, vol.7, n.2. ISSN 1852-4249.
We present the adaptation to non-free boundary conditions of a pseudospectral method based on the (complex) Fourier transform. The method is applied to the numerical integration of the Oberbeck-Boussinesq equations in a Rayleigh-Benard cell with no-slip boundary conditions for velocity and Dirichlet boundary conditions for temperature. We show the first results of a 2D numerical simulation of dry air convection at high Rayleigh number (R ~ 109). These results are the basis for the later study, by the same method, of wet convection in a solar still.