Combined heat and mass transfer for unsteady MHD flow of perfect conducting micropolar fluid with thermal relaxation

Ezzat, Magdy A.; El-Bary, Alaa A.; Ezzat, Shereen M.

doi:10.1016/j.enconman.2010.08.021

Cited by 56 publications

(14 citation statements)

References 42 publications

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“…The same approach was used quite successfully in dealing with problems in generalized thermoelasticity theory . In this work, we use a more general model of equations, which includes the relaxation time of heat conduction τ 0 and the electric permeability of the electromagnetic field ε 0 . The inclusion of the relaxation time and electric permeability modifies the governing thermal and electromagnetic equations, changing them from parabolic to hyperbolic type, and thereby eliminating the unrealistic result that thermal disturbance is realized instantaneously everywhere within a fluid .…”

Section: Resultsmentioning

confidence: 99%

State space approach to magnetohydrodynamic flow of perfectly conducting micropolar fluid with stretch

Ezzat

El‐Sapa

2011

Numerical Methods in Fluids

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SUMMARY In this work we introduce a model of the boundary layer equations for a perfect conducting micropolar fluid with stretch, bounded by an infinite vertical flat plane surface of a constant temperature. This model is applied to study the effects of free convection currents on the flow of the fluid in the presence of a constant magnetic field. The state space technique is adopted for the solution of a one‐dimensional problem for any set of boundary conditions. The resulting formulation together with the Laplace transform techniques are applied to a thermal shock problem. The inversion of the Laplace transforms is carried out using a numerical approach. Numerical results are given and illustrated graphically for the problem. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

State space approach to magnetohydrodynamic flow of perfectly conducting micropolar fluid with stretch

Ezzat

El‐Sapa

2011

Numerical Methods in Fluids

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“…Many scientists taking MHD for different scientific reasons, like Ezzat and El‐Bary 39 investigated MHD free convection flow with the heat conduction law. The combined effect of heat and mass transfer for the MHD flow of micropolar fluid with thermal relaxation studied by Ezzat and El‐Bary 40 . In another article Ezzat and EL‐Bary 41 discussed the influence of thermoelectric MHD and the heat transfer with the memory effect.…”

Section: Introductionmentioning

confidence: 99%

A fractional model of Casson fluid with ramped wall temperature: Engineering applications of engine oil

Arif

Kumam

Khan

et al. 2021

Comp and Math Methods

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This study is focused to discuss the applications of non‐Newtonian fluid in engineering problems. In this article magneto‐hydrodynamics Casson fluid have taken with ramped temperature along an infinite plate with oscillations. In addition, in the present study we have considered the effect of porous media, chemical reaction, and radiation. Mostly, non‐Newtonian fluids uses for the lubrication purposes such as, engine oil, grease, and so forth. In the present study engine oil EO is selected as base fluid due to enormous applications in engineering. To enhance the rate of heat transfer two nanoparticles molybdenum disulfide (MoS2) and graphene oxide (GO) dispersed in EO. To transform the classical model into time fractional model Caputo–Fabrizio derivative have been used. To obtain the exact solutions for the proposed problem the Laplace transform is used. The solutions are depicted through graphs for various parameters to show the influence on fluid flow. Finally, we have compared the rate of heat transfer using different nanoparticles. It is worth noting that by using (MoS2) nanoparticle the heat transfer of engine oil can be enhanced up to 6.35% and by adding GO in regular engine oil the heat transfer can be enhanced up to 5.49%.

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“…Furthermore, due to several applications to control the boundary layer theory and thermal transport properties for high-energy flow in the wall velocity in conjunction with the solutal transfer, special attention is taken care of for the study on micropolar fluids past along moving boundaries. 4 The combined fluid properties of both the flow phenomena, that is, thermal and solutal transfer of polar fluid for the MHD free convection has been carried out by Ezzat et al 5 They have conducted their work adjacent to an infinite vertical surface. Furthermore, analytically the transformed governing equations are handled by employing the Laplace transform technique and the inversion is obtained numerically.…”

Section: Introductionmentioning

confidence: 99%

A comparative note on the free convection of micropolar nanofluid due to the interaction of buoyancy and the dissipative heat energy

Pattnaik¹,

Pattnaik²,

Mishra

et al. 2021

Heat Trans

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Combined heat and mass transfer for unsteady MHD flow of perfect conducting micropolar fluid with thermal relaxation

Cited by 56 publications

References 42 publications

State space approach to magnetohydrodynamic flow of perfectly conducting micropolar fluid with stretch

State space approach to magnetohydrodynamic flow of perfectly conducting micropolar fluid with stretch

A fractional model of Casson fluid with ramped wall temperature: Engineering applications of engine oil

A comparative note on the free convection of micropolar nanofluid due to the interaction of buoyancy and the dissipative heat energy

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