Flow and heat transfer of a weak concentration micropolar-nanofluid over steady/unsteady-moving surface

Abdel-wahed, Mohamed S.

doi:10.1007/s00339-017-0815-7

Cited by 10 publications

(7 citation statements)

References 14 publications

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“…In this paper, this was the only case that was considered. The spin gradient viscosity is defined below [34].…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…The properties of the nanofluid are defined below [34] (see Table 1). Using Rosseland's approximation for radiation, the radiative heat flux is simplified in Equation 8.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…We used the Chebyshev Spectral Newton Iterative Scheme to analyze the hydromagnetic Hiemenz flow of a micropolar fluid over a non-linear stretching/shrinking sheet [32], and investigated the MHD orthogonal stagnation-point flow of a micropolar fluid in the presence of a magnetic field that is parallel to the velocity at infinity [33]. The Lorentz force effect was observed on a mixed convection micropolar flow in a vertical conduit [34], along with the flow and heat transfer of a weak concentration micropolar nanofluid over a steady/unsteady moving surface [35]. The Molecular Dynamics Study of Thermodynamic Properties of Nanoclusters for Additive Manufacturing was considered [36].…”

Section: Introductionmentioning

confidence: 99%

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MHD Steady/Unsteady Porous Boundary Layer of Cu–Water Nanofluid with Micropolar Effect over a Permeable Surface

et al. 2018

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This work provides a mathematical model for the cooling process of a moving surface, in the presence of a uniform external magnetic field and thermal radiation, through a porous medium by using a weak concentration micropolar nanofluid. The model-based on the conservation equations of the unsteady case in the momentum and thermal boundary layer-takes into consideration the effect of the suction process. The conservation equations were transformed into ordinary differential equations using similar transformation techniques. The equations were solved numerically for the general case and analytically for the steady case. The rate of heat transfer, couple shear stress, and surface shear stress are deduced. We discuss the impact of these physical characteristics on the mechanical properties of the surface that will be cooled.

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“…In this paper, this was the only case that was considered. The spin gradient viscosity is defined below [34].…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…The properties of the nanofluid are defined below [34] (see Table 1). Using Rosseland's approximation for radiation, the radiative heat flux is simplified in Equation 8.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

MHD Steady/Unsteady Porous Boundary Layer of Cu–Water Nanofluid with Micropolar Effect over a Permeable Surface

et al. 2018

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“…The effect of Lorentz force on blood flow in a vertical conduit has been studied by Abdel-wahed [7]. The weak concentration micropolar nanofluid flow and its heat transfer on steady/unsteady-moving surface presented by Abdel-wahed [8]. When the difference between the surface and the ambient temperature is large the effect of radiation will become necessary.…”

Section: Introductionmentioning

confidence: 99%

Effect of variable thermal conductivity on the MHD boundary-layer of Casson-nanofluid over a moving plate with variable thickness

2021

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The effect of variable thermal conductivity on the characteristics of heat transfer and mechanical properties of a moving surface on a casson-nanofluid flow as a coolant has been studied in this paper. We used similarity transformation method to transform the equations of the governing boundary layer into ordinary differential equations which are solved numerically using a mix of fourth order Runge Kutta method and find root technique. Different values relevant parameters have been studied on the features of velocity, temperature and the profiles of concentration and discussed in details for different values of various parameter as shape parameter, heat source parameter, radiation parameter and magnetic parameter. The results were compared with previous published researches and obtained it in a good agreement and the results were tabulated. Furthermore, Nusselt number, Sherwood number and the Skin friction values with different parameters were calculated and the influence of theses physical quantities on the mechanical properties on the surface are analyzed and discussed in details.

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“…Abdel-wahed et al [12] investigated the effect of the thermophoresis force and the Brownian motion of the nanofluids on the boundary-layer over a moving surface with variable thickness. Abdel-wahed [13] studied the effect of the micro-rotation element on the nanofluid boundary-layer over flat surface. Hayat et al [14] investigated the influence of convective boundary conditions on MHD flow of nanofluid over a stretching sheet.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic flow and heat transfer over a moving cylinder in a nanofluid under convective boundary conditions and heat generation

Abdel-Wahed

El-Said

2019

Therm sci

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Original scientific paper https://doi.org/10.2298/TSCI170911279AIn this paper, the effect of convective boundary conditions, heat generation, Brownian motion, and thermophoresis on heat transfer characteristics of a moving cylinder embedded into cooling medium consists of water with nanoparticles are studied. The governing boundary-layer equations transformed to ODE using similarity transformation method and then solved analytically using optimal homotopy asymptotic method for the general case. The velocity, temperature, and concentration profiles within the boundary-layer plotted and discussed in details for various values of the different parameters. Moreover, the effect of boundary-layer behavior on the surface shear stress, rate of heat and mass transfer investigated.

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Flow and heat transfer of a weak concentration micropolar-nanofluid over steady/unsteady-moving surface

Cited by 10 publications

References 14 publications

MHD Steady/Unsteady Porous Boundary Layer of Cu–Water Nanofluid with Micropolar Effect over a Permeable Surface

MHD Steady/Unsteady Porous Boundary Layer of Cu–Water Nanofluid with Micropolar Effect over a Permeable Surface

Effect of variable thermal conductivity on the MHD boundary-layer of Casson-nanofluid over a moving plate with variable thickness

Magnetohydrodynamic flow and heat transfer over a moving cylinder in a nanofluid under convective boundary conditions and heat generation

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