INFLUENCE OF CORIOLIS FORCE ON CONTROLLED DOUBLE-DIFFUSIVE MARANGONI CONVECTION IN NANOFLUID LAYERS

Izzati Khalidah Khalid1*, Ahmad Syukri Mohd Shukor2, Mohd Rijal Ilias3, Nurul Hafizah Zainal Abidin4, and Bekzodjon Fayziev5

1,2,3*Center of Mathematical Sciences, Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, UiTM Shah Alam, 40450 Shah Alam, Selangor Darul Ehsan, Malaysia
4Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Perak Branch, Tapah Campus, 35400 Tapah Road, Perak Darul Ridzuan, Malaysia
5Samarkand State University, Samarkand, Uzbekistan

1*This email address is being protected from spambots. You need JavaScript enabled to view it., 2This email address is being protected from spambots. You need JavaScript enabled to view it., 3This email address is being protected from spambots. You need JavaScript enabled to view it., 4This email address is being protected from spambots. You need JavaScript enabled to view it., 5This email address is being protected from spambots. You need JavaScript enabled to view it.



ABSTRACT

Controlled double-diffusive Marangoni convection in a rotating nanofluid layer, heated from below, is studied. Various types of lower-upper boundary conditions, including free-free and rigid-free, are considered. The nanofluids model incorporates the mechanisms of Brownian motion and thermophoresis in nanofluids. The stability of the nanofluids model is analysed using a linear stability analysis based on the normal mode technique. The eigenvalue problem is numerically solved using the Galerkin technique and computational simulations are carried out using Maple software. The influences of several parameters are examined and presented graphically, including modified diffusivity ratio, nanoparticles concentration, solutal Rayleigh number and Soret effects. These effects are found to contribute to the advancement of Marangoni convection, a phenomenon that occurs due to variations in surface tension along the interface of a nanofluid layer. Conversely, the presence of the Coriolis force (due to the rotation), controller gain, and Dufour effects are observed to slow down the process of Marangoni convection.


Keywords: Controller Gain, Coriolis Force, Double-Diffusive Coefficients, Nanofluids Layer and Marangoni Convection

Published On: 1 April 2026

 

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