Internally Heated Penetrative Benard-Marangoni Ferroconvection: Effect of MFD Viscosity

被引：0
|
作者：
Suprabha, R. [1 ]
Mahesha, C. R. [1 ]
Nanjundappa, C. E. [2 ]
机构：
[1] Dr Ambedkar Inst Technol, Dept Ind Engn & Management, Bengaluru 560056, India
[2] Dr Ambedkar Inst Technol, Dept Math, Bengaluru 560056, India
来源：
THIRD INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE, SMART STRUCTURES AND APPLICATIONS (ICMSS 2020) | 2021年 / 2327卷
关键词：
Benard-Marangoni fcrroconvection; Galerkin technique; Internal heating; Magnetic Field Dependent viscosity; magnetic susceptibility; Insulated boundaries; CONVECTIVE INSTABILITY; TRANSFER ENHANCEMENT; FERROFLUIDS; LAYER;
D O I：
10.1063/5.0039846
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A representation for the effect of internally heated on penetrative Benard-Marangani-ferroconvection (BMF) driven by constant and uniform volumetric heating with magnetic field dependent (MFD) viscosity is studied. The lower surface is rigid-isothermal and the upper free surface is considered to be plane and non-deformable subject to Robin type of thermal boundary condition. A Galerkin-type is based on the weighted residual method (WRM) has been used to obtain the cigenvalue for gravity and magnetic thermal Rayleigh number. It is noted that the buoyancy, magnetic and surface tension forces influence the onset of BMF. The onset of BMF is delayed with an increase in magnetic field dependent viscosity parameter (A), Biot number (Bi) and magnetic susceptibility (chi) with an increase in the region of stability. In addition, the nonlinearity of fluid magnetization (M-3) and magnetic number (M-1) is found to hasten the onset of FTC. Some existing results are reproduced as particular cases from the present study.
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页数：9
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