Abstract
Ferromagnetic fluids are made up of magnetic particles, which are suspended in a carrier liquid such as water, hydrocarbon (mineral oil or kerosene) or fluorocarbon with a surfactant to avoid clumping. Worldwide many literature revealed that, the ferromagnetic fluids application has been diversified in nature and widely used in engineering, technology, agricultural, animal and biomedical sciences etc. (evidence based medicine for cancer patients, fertigation in agriculture). Now a days, the driven applications are using in developing countries. The ferromagnetic fluids analytical applications are very limited scope in Indian scenario due to paucity of literature and technological gap. In the essence of this research gap the present study undertaking to demonstrate the various applications of ferroconvection in a heterogeneous Brinkman porous medium on theoretical basis. The resulting eigenvalue problem is solved numerically using the Galerkin method. The effects of vertical heterogeneity of permeability, Darcy parameter, Magnetic Rayleigh number, nonlinearity of magnetization, and internal heat source on the onset of ferromagnetic convection is investigated.
Highlights
The ferromagnetic fluids are made up of magnetic nanoparticles, which are suspended in a carrier liquid such as water, hydrocarbon or fluorocarbon with a surfactant to avoid clumping [1, 2]
The problem of ferromagnetic convective instability leads to magnetized ferrofluid layer, it was heated from below minimal temperature, this was investigated by Neuringer et al Rosensweig et al Finlayson et al Recently, Afifah et al studied various applications of ferroconvection in a magnetized ferrofluid with saturating porous medium
In Indian context a similar study was Ravisha Mallappa et al.: Practical Insight of Ferroconvection in Heterogeneous Brinkman Porous Medium reported by Sadrhosseini et al he observed that, the heat can transfer to ferrofluid by porous media inside canal with uniform heat flux on the wall and its effect was seen in magnetic field [6,7,8,9]
Summary
The ferromagnetic fluids are made up of magnetic nanoparticles, which are suspended in a carrier liquid such as water, hydrocarbon (mineral oil or kerosene) or fluorocarbon with a surfactant to avoid clumping [1, 2]. The ferromagnetic fluids analytical applications is very limited scope in worldwide due to paucity of literature and technological gap, there is a scope for further investigations on ferromagnetic convection in a heterogeneous Brinkman porous medium with internal heat source [10,11,12]. In this wide research gap, the present study is attempt to demonstrate the various applications of ferromagnetic convection with onset of penetrative ferromagnetic convection in a ferrofluid-saturated horizontal heterogeneous Brinkman porous layer (uniformly distributed internal heat source)
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