Thermocapillary Convection in a Deformable Ferrofluid Layer

Nor Halawati Senin; Nor Fadzillah Mohd Mokhtar; Mohamad Hasan Abdul Sathar

Authors

Nor Halawati Senin Laboratory of Computational Sciences and Mathematical Physics, Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia, Malaysia
Nor Fadzillah Mohd Mokhtar Laboratory of Computational Sciences and Mathematical Physics, Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia, Malaysia
Mohamad Hasan Abdul Sathar Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, Malaysia

Keywords:

Deformable, Marangoni, Ferrofluid

Abstract

A linear stability evaluation is conducted to explore the effect on the onset of Marangoni-Bénard convection in a ferrofluid layer system. The system is heated from below with treatment of both the lower and upper boundaries to completely insulate the temperature disturbance. The eigenvalue problem is solved by using regular perturbation technique to obtain the critical number of Marangoni and also the critical number of Rayleigh. It is observed that the increase in the value Crispation, the magnetic number of Rayleigh and also the magnetic number will destabilize the system while the increasing number of Bonds will delay the convection.