Abstract
The present study analyzes the effect of sinusoidal heating with different frequencies on thermal transport-based nanofluid flow moderated by magnetic fields of a typical magneto-thermal system. A square geometry is chosen to represent such a thermal system. The left wall is following constraint-based sinusoidal heating such that the mean heating temperature Th remains fixed. The right sidewall is used for heat rejection to the ambient at temperature Tc. This investigation is executed numerically by using a computational solver based on the finite element method. The Rayleigh number (Ra), frequency of non-uniform heating (N), Hartmann number (Ha), and nano-particle concentration (φ) are taken as investigation parameters. The results of the streamlines, isotherms, and average Nusselt number (Nu) depict that the flow configuration and heat transfer characteristics are heavily affected by the variation of Ra, N, and Ha in comparison to φ for the given cavity. It is observed that, the convective heat transfer tends to optimum when Ra = 106, N = 2, Ha = 0 and φ = 1%. It is also noticed that the frequency values of N = 1 and 2 are the better choice for the improvement of thermal performance.
Published Version
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