Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Fakour, M.; Vahabzadeh, A.; Ganji, D.D.

doi:10.1016/j.jppr.2015.02.005

Cited by 32 publications

(16 citation statements)

References 30 publications

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“…Figure 3 shows that increase of magnetic field induction, the temperature value was decreased. While applying B = 0.05 T and B = 1 T the decrease rate is 0.38% and 0.68% according to the B = 0 T. Similar effect of magnetic forces on the flow body temperature was clarified in [3,5,7,8] as temperature increases with increase in the magnetic field intensity Figure 5 presents the variation of local temperature under the influence of applied constant magnetic field B = 1 T and electrical field intensity value are E + = 1e-4 and E -= −1e-4 V/m. While magnetic field is constantly applying on the flow domain with the value is B = 1 T, the local temperature was decreased by the influence of electrical field intensity is E + = 1e-4 V/m.…”

Section: Resultssupporting

confidence: 53%

“…It is concluded that heat transfer in channels can be enhanced up to about 75% due to the presence of magnetic field. Fakour et al [3] investigated laminar fluid flow and heat transfer in channel with permeable walls in the presence of a transverse magnetic field. It is concluded that by applied magnetic field, velocity in the channel is reduced and the maximum amount of temperature increases.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of electrical and magnetic field on cooling process of liquid metal duct magnetohydrodynamic flow

Selimli¹,

Recebli²

2018

THERM SCI

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Cooling period of liquid metal while flowing under imposed magnetic and electrical field was studied for laminar steady flow condition. Computational analyses were done by ANSYS Fluent software MHD module. For applied each constant value of magnetic field induction (B = 0 T, B = 0.05 T, B = 1 T), the electrical field intensity was applied positively as E + (1e-4, 1e-5) V/m and negatively as E − (-1e-4,-1e-5) V/m. Increase of the E+ field intensity decreased the local temperature (increased cooling rate) but also increased the heat flux and Nusselt number. Also, decrease of E − in the opposite direction increased the temperature but also decreased the heat flux and Nusselt number. It could be signified that by the application of magnetic field or together with electrical field, the heat transfer could be improved or attenuated.

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Section: Resultssupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Impact of electrical and magnetic field on cooling process of liquid metal duct magnetohydrodynamic flow

Selimli¹,

Recebli²

2018

THERM SCI

View full text Add to dashboard Cite

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“…Substituting Equations (28) and (29) in Equations (23) and (24) along with boundary conditions (25) and (26), a system of equations is obtained up to first-order as follows.…”

Section: Solution Of the Problemmentioning

confidence: 99%

“…It is noticed that Equation (41) depends upon the P e . The stream function and temperature distributions up to first order can be obtained by substituting zeroth and first-order solutions in Equations (28) and (29).…”

Section: First-order Problem and Solutionmentioning

confidence: 99%

Variable Wall Permeability Effects on Flow and Heat Transfer in a Leaky Channel Containing Water-Based Nanoparticles

2020

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This work presents the effects of variable wall permeability on two-dimensional flow and heat transfer in a leaky narrow channel containing water-based nanoparticles. The nanofluid is absorbed through the walls with an exponential rate. This situation arises in reverse osmosis, ultrafiltration, and transpiration cooling in industry. The mathematical model is developed by using the continuity, momentum, and energy equations. Using stream function, the transport equations are reduced and solved by using regular perturbation method. The expressions for stream function and temperature distribution are established, which helps in finding the components of velocity, wall shear stress, and heat transfer rate inside the channel. The results show that velocity components, temperature, wall shear stress, and rate of heat transfer are minimum at the entrance region due to the reabsorption of fluid containing nanoparticles. Additionally, with increasing volume fraction of nanoparticles, the rate of heat transfer enhances at all positions inside the channel. Titanium dioxide (TiO 2 ) nanoparticles show higher wall shear stress compared to copper and alumina. The streamlines confirms that all the fluid is reabsorbed before reaching the exit region of the channel for high reabsorption.

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“…They showed that the least square method was more accurate than di erential transformation method. In other analytical investigations, Fakour et al [6,7] employed the least square method to study ow eld and heat transfer in a porous channel in the presence of a transverse magnetic eld. The e ect of thermal radiation on ow eld and heat transfer in a thin liquid lm in a porous medium was investigated by Darzi et al [8] using the least square method.…”

Section: Introductionmentioning

confidence: 99%

Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field

2017

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Abstract. Forced convection uid ow and heat transfer were investigated in a porous channel with expanding or contracting walls, which was lled with Al2O3-Cu/water micropolar hybrid nano uid in the presence of magnetic eld. In order to solve the governing equations analytically, the least square method was employed. The hot bottom wall was cooled by the coolant uid, which was injected into the channel from the top wall. The range of nanoparticles volume fraction (90% Al 2 O 3 and 10% Cu by volume) was between 0% and 2%. The e ects of consequential parameters such as Reynolds number, Hartmann number, micro rotation factor, and nanoparticles volume fraction on velocity and temperature pro les were examined. The results show that with increasing Reynolds number, the values of temperature and micro rotation pro les decrease. Furthermore, when the hybrid nano uid is used, compared to common nano uid, the heat transfer coe cient will increase signi cantly. It is also observed that when the Hartmann number increases, Nusselt number increases, too.

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Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Cited by 32 publications

References 30 publications

Impact of electrical and magnetic field on cooling process of liquid metal duct magnetohydrodynamic flow

Impact of electrical and magnetic field on cooling process of liquid metal duct magnetohydrodynamic flow

Variable Wall Permeability Effects on Flow and Heat Transfer in a Leaky Channel Containing Water-Based Nanoparticles

Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field

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