A study of internal heat generationeffect with gravity modulationin a horizontal layer of magnetic nanofluidin the occurrence of evenvertical magnetic field on the onset of Benard-Marangoni convection heated from below is presented. Theupper boundary, which is free, considered flat and undeformable and thelower boundary is assumed to be rigid. Upper and lower boundaries are insulated perfectly to temperature perturbations. Galerkintechnique is used to solve numerically eigenvalue problem. It is inferred that the internal heat source strength and gravity modulation has considerable influence on the onset of convection.
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