Heat transfer in micropolar fluid flow under the influence of magnetic field

Kocic, M Milos; Stamenkovic, M Zivojin; Petrovic, D Jelena; Bogdanović-Jovanović, Jasmina; Nikodijevic, D Milica

doi:10.2298/tsci16s5391k

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…However, in Figure 6(c) we can see that as K rises, so does the absolute value of the microrotation vector close to the plates, 20,49 and is therefore obvious that additional viscosity λ emphasizes the characteristics of micropolar fluids. This means that additional viscosity λ emphasizes the small particle microrotation, which particles were embedded in the fluid.…”

Section: Results Analysismentioning

confidence: 97%

MHD micropolar fluid flow in porous media

Kocic

Stamenković

Petrović

et al. 2023

Advances in Mechanical Engineering

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The analysis of mass and heat transfer in magnetohydrodynamic (MHD) flows has significant applications in heat exchangers, cooling nuclear reactors, designing energy systems and casting and injection processes of different types of fluids. On the other hand, extraction of crude oil, the flow of human or animal blood, as well as other polymer fluids or liquid crystals are just some examples of micropolar fluid flows. Due to the broad application spectrum of the theory of micropolar fluid flows, and the significance the impact the external magnetic field has on the flow of these fluids, this paper considers the stationary flow of a micropolar fluid between two plates under the influence of an external magnetic field which is perpendicular to the direction of the flow. Stationary plates are maintained at constant and different temperatures, while the whole problem is considered in the non-inductive approximation. The equation system used to define the physical problem under consideration is reduced to the system of differential equations that have been solved analytically and the solutions of which are of general nature. In addition to the solutions for velocity, microrotation and temperature, the paper gives solutions for shear stress at plates, the Nusselt number and flow rate. The provided solutions have been applied in order to reach some general conclusions about the influence of the magnetic field and physical characteristics of a micropolar fluid and the characteristics of porous media on the nature of micropolar fluid flows in porous media by means of chart analysis. General conclusions, obtained in the result analysis in this paper, give us the opportunity to understand the flows of micropolar fluids and highlight their significance.

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Section: Results Analysismentioning

confidence: 97%

MHD micropolar fluid flow in porous media

Kocic

Stamenković

Petrović

et al. 2023

Advances in Mechanical Engineering

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“…Keeping in view the wide area of practical importance of micropolar fluid-flow and heat transfer, as well as influence of electrical-conductivity of walls on flow and heat transfer, as previously mentioned, and continuing our previous work [23], the objective of the present study is to investigate the full MHD flow and heat transfer characteristics of incompressible micropolar fluid in a parallel plate channel with induced magnetic field effects and arbitrary electrical-conductivity of walls. The effects of the governing parameters on the flow and heat transfer aspects of the problem are discussed.…”

Section: Introductionmentioning

confidence: 90%

Influence of electrical-conductivity of walls on magnetohydrodynamic flow and heat transfer of micropolar fluid

et al. 2018

Self Cite

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In this paper, flow and heat transfer in a horizontal channel with isothermal walls has been investigated. The upper and lower plate have been kept at the two constant different temperatures, micropolar fluid is electrically conducting, while the channel plates have arbitrary electrical-conductivity. Applied magnetic field is perpendicular to the flow and the full MHD model is investigated. The general equations that describe the discussed problem under the adopted assumptions are reduced to ODE and closed-form solutions are obtained. The profiles of velocity, microrotation, induced magnetic and temperature fields in function of electricalconductivity and the coupling parameter and the spin-gradient viscosity parameter together with electrical-conductivity, are graphically shown and discussed

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“…Hashemi et al [11] computed the numerical solutions of micropolar nanofluid-flow inside a radiative porous medium buoyancy and magnetic field effects. Several researchers including [12][13][14][15][16] have investigated micropolar fluid-flow over a stretching/shrinking sheet with or without magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Micropolar mixed convective flow with Cattaneo-Christov heat flux: Non-fourier heat conduction analysis

Hussanan

Khan

et al. 2020

THERM SCI

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The purpose of this study is to investigate the impact of thermal relaxation time on the mixed convection flow of non-Newtonian micropolar fluid over a continuously stretching sheet of variable thickness in the presence of transverse magnetic field. An innovative and modified form of Fourier's law, namely, Cattaneo-Christov heat flux is employed in the energy equation to study the characteristics of thermal relaxation time. The governing equations are transformed into ODE, using similarity transformations. Fourth order Runge-Kutta numerical method is used to solve these equations. The effects of relevant parameters such as a micro-rotation parameter, magnetic parameter, thermal relaxation parameter, Prandtl number, surface thickness parameter, and mixed convection parameter, on the physical quantities are graphically presented. Results illustrate that fluid temperature enhances with the rise of thermal relaxation parameter, but it reduces with an increase in micro-rotation parameter. The skin friction decreases with a rise in micro-rotation and micro-element parameters. However, variation in the rate of heat transfer is quite significant for small values of thermal relaxation parameter.

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Heat transfer in micropolar fluid flow under the influence of magnetic field

Cited by 6 publications

References 17 publications

MHD micropolar fluid flow in porous media

MHD micropolar fluid flow in porous media

Influence of electrical-conductivity of walls on magnetohydrodynamic flow and heat transfer of micropolar fluid

Micropolar mixed convective flow with Cattaneo-Christov heat flux: Non-fourier heat conduction analysis

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