Non-linear Convective Transport in a Binary Nanofluid Saturated Porous Layer |
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Authors: | Shilpi Agarwal Nirmal C. Sacheti Pallath Chandran B. S. Bhadauria Ashok K. Singh |
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Affiliation: | 1.Department of Mathematics, Faculty of Science,Banaras Hindu University,Varanasi,India;2.Department of Mathematics and Statistics, College of Science,Sultan Qaboos University,Muscat,Sultanate of Oman;3.Department of Applied Mathematics and Statistics, School for Physical Sciences,BB Ambedkar University,Lucknow,India |
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Abstract: | In this article, we study double-diffusive convection in a horizontal porous medium saturated by a nanofluid, for the case when the base fluid of the nanofluid is itself a binary fluid such as salty water. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis, while the Darcy model is used for the porous medium. The thermal energy equations include the diffusion and cross-diffusion terms. The linear stability is studied using normal mode technique and for non-linear analysis, a minimal representation of the truncated Fourier series analysis involving only two terms has been used. For linear theory analysis, critical Rayleigh number has been obtained, while non-linear analysis has been done in terms of the Nusselt numbers. |
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