Variable thermal effects of viscosity and radiation of ferrofluid submerged in porous medium

Saeed, Munazza; Ahmad, Bilal; Hassan, Qazi Mahmood Ul

doi:10.1016/j.asej.2021.101653

Cited by 16 publications

(12 citation statements)

References 50 publications

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“…So far, no studies have attempted to disentangle the effects of 2-D nano-particles moment on steady flow across a ferromagnetic stretched surface. As a result, we extended, the modifiable thermal effects of ferrofluid submerged in porous media were studied by Munazza et al [43]. An influence of magnetic dipole with nonlinear thermal ferromagnetic radiation liquid across a stretching region is investigated numerically using a broad range of relevant parameters.…”

Section: Introductionmentioning

confidence: 84%

“…Its magnetic field points in the positive x-direction and the strength of the magnetic field is sufficient to saturate the ferrofluid. The stretching sheet is kept at a fixed temperature T w below the Curie temperature T c , while the liquid elements far away from the sheet are supposed to be at temperature T = T c and hence incapable of being magnetized until they begin to cool upon entering the thermal BL adjacent to the sheet'' [43].…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…6) To prevent magnetization of the stretched sheet, we maintained a constant temperature T w under heath Curie temp (T c ). The scalar magnetic potential, its components, and the magnitude of magnetic field H are [43] V…”

Section: Mathematical Formulationmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Analysis of the Magnetic Dipole Effect on a Radiative Ferromagnetic Liquid Flowing over a Porous Stretched Sheet

Dharmaiah,

Mebarek-Oudina,

Balamurugan

et al. 2024

FDMP

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The effects of a magnetic dipole on a nonlinear thermally radiative ferromagnetic liquid flowing over a stretched surface in the presence of Brownian motion and thermophoresis are investigated. By means of a similarity transformation, ordinary differential equations are derived and solved afterwards using a numerical (the BVP4C) method. The impact of various parameters, namely the velocity, temperature, concentration, is presented graphically. It is shown that the nanoparticles properties, in conjunction with the magnetic dipole effect, can increase the thermal conductivity of the engineered nanofluid and, consequently, the heat transfer. Comparison with earlier studies indicates high accuracy and effectiveness of the numerical approach. An increase in the Brownian motion parameter and thermophoresis parameter enhances the concentration and the related boundary layer. The skin-friction rises when the viscosity parameter is increased. A larger value of the ferromagnetic parameter results in a higher skin-friction and, vice versa, in a smaller Nusselt number.

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Section: Introductionmentioning

confidence: 84%

Section: Mathematical Formulationmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Analysis of the Magnetic Dipole Effect on a Radiative Ferromagnetic Liquid Flowing over a Porous Stretched Sheet

Dharmaiah,

Mebarek-Oudina,

Balamurugan

et al. 2024

FDMP

View full text Add to dashboard Cite

show abstract

“…Jiao et al, [9] found in their studies found that to achieve the best result of heat transfer of ferrofluid the concentration of particle and external magnetic effect has to be controlled. Saeed et al, [10] claimed velocity profile gradient decrease as ferrofluid and viscosity parameter increase. Ferrofluid is also used to create new smart fluid and solar application like [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Boundary Layer Flow of Williamson Hybrid Ferrofluid over A Permeable Stretching Sheet with Thermal Radiation Effects

Rosli

Mohamed

Sarif

et al. 2023

CFDL

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This research investigated the convective boundary layer flow and heat transfer of Williamson hybrid ferrofluid over a permeable stretching sheet with thermal radiation effects. Human blood is employed as a based fluid while magnetite (Fe3O4) and copper (Cu) are taken as the hybrid ferroparticle. The study started with transforming the non-linear partial differential equation system that governed the model to a more convenience non-linear dimensionless ordinary differential equations using the similarity transformation. The transformed equations obtained then are solved numerically using the Runge-Kutta-Fehlberg (RKF45) method in Maple software. The characteristics and effects of stretching parameter, permeability parameter, thermal radiation parameter as well as the ferroparticle volume fraction in the Williamson hybrid ferrofluid towards the temperature profiles, velocity profiles as well as the Nusselt number and the skin friction coefficient are analysed and discussed. The result of this research for various pertinent parameter varies differently. It can be concluded that the increase in magnetic parameter, the Williamson parameter, the stretching parameter, and the permeability rate parameter increase the skin friction and reduced the velocity profile. Furthermore, the increase in stretching parameter, thermal radiation parameter and the permeability rate results to the increase in the Nusselt number.

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“…Sedki 27 discussed the permeable medium impacts in radiative MHD reactive nanofluid flow through stretchable surface considering mixed convective phenomenon. Saeed et al 28 disclosed the porosity features in radiative ferro type fluid under the impact of varying viscosity. Shah et al 29 depicted the generalized fluxes impact in radiative Maxwell magneto nanofluid through porous media with slip impacts.…”

Section: Introductionmentioning

confidence: 99%

Investigation of variable thermal relaxation time in non-Fourier heat transfer flow with nonlinear thermal stratification

Shafee

Hafeez

Farooq

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Energy utilization is a significant aspect of the manufacturing industrial processes, and inefficient transferring of heat is one of the disadvantages which can affect the quality measures of end product. Therefore, by controlling the heat transferring rate, the efficiency of manufacturing processes can be improved. Thus, the variable thermal relaxation time factor in the theory of Cattaneo-Christov is main concern of this analysis. The non-isothermal flow by means of a porous medium is modeled and analyzed for a viscous fluid. The fluid deformation is discussed under stretching mechanism. A study is also executed to interrogate the heat transfer features under the heat flux model of Cattaneo-Christov. Thermal relaxation time is also considered which is determined by temperature. The aspect of thermal stratification is also implemented to see the modifications in temperature. The flow and energy equations are reduced by appropriate variables. The reduced constitutive flow equations are then computed using an analytical convergent technique. The significant impacts of the numerous parameters on the flow field and heat transport features are evaluated in detail through various plots. Skin friction coefficient is evaluated mathematically. Results found that the temperature significantly decreases with increased stratification effects. For larger thermal relaxation time parameter, the temperature function shows increasing behavior.

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Variable thermal effects of viscosity and radiation of ferrofluid submerged in porous medium

Cited by 16 publications

References 50 publications

Numerical Analysis of the Magnetic Dipole Effect on a Radiative Ferromagnetic Liquid Flowing over a Porous Stretched Sheet

Numerical Analysis of the Magnetic Dipole Effect on a Radiative Ferromagnetic Liquid Flowing over a Porous Stretched Sheet

Boundary Layer Flow of Williamson Hybrid Ferrofluid over A Permeable Stretching Sheet with Thermal Radiation Effects

Investigation of variable thermal relaxation time in non-Fourier heat transfer flow with nonlinear thermal stratification

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