MHD Boundary Layer Slip Flow and Heat Transfer of Ferrofluid along a Stretching Cylinder with Prescribed Heat Flux

Qasim, Muhammad; Khan, Zahid Hasan; Khan, Waqar A.; Shah, Ismail

doi:10.1371/journal.pone.0083930

Cited by 104 publications

(54 citation statements)

References 16 publications

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“…He also proposed a correlation for the determination of the thermal conductivity of alumina nanofluids based on the experimental data. Though several attempts have been made on nanofluids to explain the physical reasons for the heat transfer enhancement [13,14], there are still many conspicuous inconsistencies and the investigators are working on, see for example some recent attempts in [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: --------------mentioning

confidence: 99%

Radiation and heat generation effects in magnetohydrodynamic mixed convection flow of nanofluids

Gul¹,

Khan²,

Shafie³

2018

Therm sci

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Radiation and heat generation effects in unsteady magnetohydrodynamic mixed convection flow of nanofluids along a vertical channel are investigated. Silver nanoparticles of spherical shapes and of different sizes in water as a convectional base fluid are incorporated. The purpose of this study is to measure the effect of different sizes of nanoparticles on velocity and temperature. Keeping in mind the size, particle material, shape, clustering and Brownian motion of nanoparticles, Koo and Kleinstreuer model is used. The problem is modeled in terms of partial differential equations with physical boundary conditions. Analytical solutions are obtained for velocity and temperature, plotted and discussed. It is concluded that increasing the size of Ag nanoparticles (up to specific size, 30 nm, results in a very small velocity increment while for large particle size (30-100 nm), no change in velocity is observed. As the small size of nanoparticles has the highest thermal conductivity and viscosity. This change in velocity with size of nanoparticles is found only in water-based nanofluids with low volume fraction 0.01 while at low volume concentration, no change is observed.

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Section: --------------mentioning

confidence: 99%

Radiation and heat generation effects in magnetohydrodynamic mixed convection flow of nanofluids

Gul¹,

Khan²,

Shafie³

2018

Therm sci

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“…Amsa et al [24] investigated nanofluid flow near a vertical plate containing five different nanoparticles. The radiative heat transfer in the natural convection flow of oxide nanofluid was studied by Das and Jana [25]. Dhanai et al [26].…”

Section: Introductionmentioning

confidence: 99%

MHD Nanofluids in a Permeable Channel with Porosity

Khan

Alqahtani

2019

Symmetry

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This paper introduces a mathematical model of a convection flow of magnetohydrodynamic (MHD) nanofluid in a channel embedded in a porous medium. The flow along the walls, characterized by a non-uniform temperature, is under the effect of the uniform magnetic field acting transversely to the flow direction. The walls of the channel are permeable. The flow is due to convection combined with uniform suction/injection at the boundary. The model is formulated in terms of unsteady, one-dimensional partial differential equations (PDEs) with imposed physical conditions. The cluster effect of nanoparticles is demonstrated in the C 2 H 6 O 2 , and H 2 O base fluids. The perturbation technique is used to obtain a closed-form solution for the velocity and temperature distributions. Based on numerical experiments, it is concluded that both the velocity and temperature profiles are significantly affected by φ. Moreover, the magnetic parameter retards the nanofluid motion whereas porosity accelerates it. Each H 2 O-based and C 2 H 6 O 2 -based nanofluid in the suction case have a higher magnitude of velocity as compared to the injections case.

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“…Hayat et al [5] have examined the third-order fluid motion over an extending tube within the effect of MHD. Qasim et al [6] have considered the slip flow of sighted ferrofluid over an extending cylinder. Sheikholeslami [7] has studied the suction idea considering nanofluid over an extended cylinder.…”

Section: Introductionmentioning

confidence: 99%

The Heat and Mass Transfer Analysis During Bunch Coating of a Stretching Cylinder by Casson Fluid

Gul¹,

Afridi²

2019

Fluid Flow Problems

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The aim of this study is to coat a stretching cylinder with the help of a liquid film spray. T h eC a s s o nf l u i dh a sb e e nc h o s e nf o rt h ec oating phenomena. The thickness of the liquid film has been used as variable, and the influence of heat and mass transmission under the impact of thermophoresis has been encountered in the flow field. The required pressure term for the spray pattern during variable thickness has mainly been focused. Using the suitable similarity transformations, the basic flow equations for the fluid motion have been converted into high-order nonlinear coupled differential equations. Series solutions of subsequent problem have been obtained using controlling procedure optimal approach. Important physical constraints of skin friction, Nusselt number, and Sherwood number have been calculated numerically and discussed. Other physical parameters involved in the problem, i.e., Reynolds number Re, Casson fluid parameter β 1 , Prandtl number Pr, Lewis number Le, Brownian motion parameter N b , and thermophoresis parameter N t have been illustrated. The skin friction effect and its physical appearance are also included in this work. The convergence is checked by plotting h-curves. The emerging parameters are discussed by plotting graphs. The recent work is also compared with the published work.

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MHD Boundary Layer Slip Flow and Heat Transfer of Ferrofluid along a Stretching Cylinder with Prescribed Heat Flux

Cited by 104 publications

References 16 publications

Radiation and heat generation effects in magnetohydrodynamic mixed convection flow of nanofluids

Radiation and heat generation effects in magnetohydrodynamic mixed convection flow of nanofluids

MHD Nanofluids in a Permeable Channel with Porosity

The Heat and Mass Transfer Analysis During Bunch Coating of a Stretching Cylinder by Casson Fluid

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