Litcius/Paper detail

Thermal transmittance and thermo-magnetization of unsteady free convection viscous fluid through non-singular differentiations

Kashif Ali Abro, Imran Qasim Memon, Ambreen Siyal

2020Physica Scripta22 citationsDOIOpen Access PDF

Abstract

Abstract Convective stability of ferromagnetic fluids can provide an adequate heat transfer via conventional convection due to a temperature gradient. This manuscript presents an analytical study for thermo-magnetized convection by means of non-integer order derivatives is investigated in which the core object is to show how to enhance, invert and suppress the convection modes based on local verses non-local kernels. Mathematical modeling is developed for the sake of magnetization depends upon governing equations of velocity, concentration and temperature profiles. Fractional treatments are invoked based on Fourier analysis and Laplace transforms to the dynamical equations govern the thermomagnetic convection. The analytical solutions of velocity, concentration and temperature have been established in terms of Mittage-Leffler <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mrow> <mml:mi mathvariant="bold">E</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>α</mml:mi> </mml:mrow> </mml:msub> <mml:mrow> <mml:mfenced close=")" open="(" separators=""> <mml:mrow> <mml:mo>−</mml:mo> <mml:mi>β</mml:mi> <mml:msup> <mml:mrow> <mml:mi>t</mml:mi> </mml:mrow> <mml:mi>α</mml:mi> </mml:msup> </mml:mrow> </mml:mfenced> </mml:mrow> </mml:math> and elementary functions. In order to have the performance of higher or lower susceptibility from thermomagnetic convection, profiles of velocity, concentration and temperature have been depicted separately by means of Atangana-Baleanu and Caputo-Fabrizio fractional operators for highlighting the immense impacts on ferromagnetic fluid flow. For the sake of novel outcomes of this study, it is observed that velocity is decreasing function of magnetic field when an increment in the amount of magnetic constant kicks off the augmentation of the Lorentz strength.

Topics & Concepts

Thermomagnetic convectionMaterials scienceConvectionThermodynamicsPhysicsMagnetic fieldQuantum mechanicsFractional Differential Equations SolutionsNanofluid Flow and Heat TransferHeat Transfer and Optimization