Heat transfer analysis of hydromagnetic water–graphene oxide nanofluid flow in the channel with asymmetric forced convection on walls

Javanmard, Mohsen; Taheri, Mohammad Hasan; Abbasi, Morteza; Ebrahimi, S. M.

doi:10.1016/j.cherd.2018.06.041

Cited by 24 publications

(11 citation statements)

References 39 publications

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“…Needless to mention that, the absolute tolerance has been set as default (10 −6 ). Table 4 shows the values of F″(0) and G'(0) for pure water (W1=W2=φ=φ1=φ2=0), Ec=Ecx=0.3, and Pr=6.2. As a result, we understand our computations are valid in comparison with previous investigations obtained by Javanmard et al., 31 Sheremet et al., 29 and Wierzbicki et al. 32 Therefore, we can claim that the present algorithm can be employed with great confidence due to excellent validity of the numerical results.…”

Section: Numerical Solution and Validationsupporting

confidence: 77%

“…Table 1 depicts thermophysical properties of water at 25 C and both nanoparticles. [29][30][31][32] The constant temperature of lower stretchable permeable sheet is T b , while the constant temperature of the upper moving sheet is T t : Under above considerations and using Tiwari-Das nanofluid's model, 33 the nonlinear governing PDEs can be written as below 27,28,34 Table 1. Thermophysical properties of base fluid and nanoparticles.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Thermophysical properties of base fluid and nanoparticles. [29][30][31][32] Thermophysical properties…”

Section: Mathematical Formulationmentioning

confidence: 99%

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Three-dimensional squeezed flow of aqueous magnetite–graphene oxide hybrid nanofluid: A novel hybridity model with analysis of shape factor effects

Dinarvand

Rostami

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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In the present article, we intend to study quasi-analytically the unsteady three-dimensional squeezed flow of the magnetite–graphene oxide/water hybrid nanofluid inside a rotating channel with two horizontal and parallel sheets, in which the lower sheet is stationary, stretchable, and permeable, while the upper sheet is moving and impermeable. Our methodology is based on the single-phase Tiwari–Das hybrid nanofluid model considering nanoparticles and base fluid masses instead volume concentration of first and second nanoparticles. The dimensional partial differential equations are altered to a set of nondimensional ordinary differential equations with the help of similarity transformation method, which is then solved numerically using the bvp4c function from MATLAB. The governing similarity parameters are the empirical shape factor of nanoparticles, the suction parameter, the squeezing parameter, the rotation parameter, the Eckert number, and the Prandtl number. Results indicate that when the upper sheet faster moves toward the lower sheet, the profiles trend is opposite in comparison with when the upper sheet faster moves away from the lower one. On the one hand, the drastic thermal conductivity of the graphene oxide is a major reason to achieve maximum heat transfer rate enhancement of our working fluid. Finally, this study may be applicable in biomechanics, flow through arteries, food processing, polymer processing, lubrication, injection modeling, etc.

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Section: Numerical Solution and Validationsupporting

confidence: 77%

Section: Mathematical Formulationmentioning

confidence: 99%

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Three-dimensional squeezed flow of aqueous magnetite–graphene oxide hybrid nanofluid: A novel hybridity model with analysis of shape factor effects

Dinarvand

Rostami

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Some studies applied semi-analytical solution methods such as the homotopy analysis method (HAM), 13,17 Duan–Rach approach (DRA), 18 collocation, least-square, and Galerkin methods 12,15,16,19 and optimal homotopy analysis method (OHAM). 14 Also, empirical 20 and numerical studies 21–24 have been applied.…”

Section: Introductionmentioning

confidence: 99%

“…As well, the influence of the magnetic field on the nanofluid flow has also been considered in much research. 13–15,18,22,23,25 They reported the augmentation of the magnetic field leads to a reduction of velocity and temperature value; consequently, the heat transfer rate declines.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer of a radial, nanofluid water-graphene oxide hydromagnetic flow between coaxial pipes with a variable radius ratio

Javanmard

Salmani

Taheri

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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The main objective of the present study is to analyze the heat transfer of a water-graphene oxide nanofluid flow between coaxial pipes, analytically. The radius ratio of pipes is variable, and a radial constant magnetic field applies to the pipes. Moreover, the Robin boundary condition is considered on the pipe’s walls. As a novelty, the exact solution is utilized to obtain the velocity distribution; further, the energy equation is solved employing the semi-analytical collocation method. The results reveal that the enhancement of nanoparticle volume fraction and radius ratio increases the dimensionless shear stress on pipes walls by 2% and 100%, respectively; consequently, the friction on walls grows. Though, the magnetic parameter has the contrary effect. Furthermore, it is observed the Eckert number augmentation decuples the bulk temperature and the heat transfer. Moreover, when the outer pipe Biot number and radius ratio increase, the bulk temperature and the heat transfer augment more than 90%. However, the magnetic parameter and nanoparticle volume fraction have a contrary effect. Also, as the inner pipe Biot number rises, we do not observe a constant pattern for the dimensionless temperature and heat transfer rate variation.

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Numerical study and artificial neural network modeling of the tube banks arrangement considering exergetic performance

Abu‐Hamdeh

Bantan

Nusier

et al. 2021

J Therm Anal Calorim

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Heat transfer analysis of hydromagnetic water–graphene oxide nanofluid flow in the channel with asymmetric forced convection on walls

Cited by 24 publications

References 39 publications

Three-dimensional squeezed flow of aqueous magnetite–graphene oxide hybrid nanofluid: A novel hybridity model with analysis of shape factor effects

Three-dimensional squeezed flow of aqueous magnetite–graphene oxide hybrid nanofluid: A novel hybridity model with analysis of shape factor effects

Heat transfer of a radial, nanofluid water-graphene oxide hydromagnetic flow between coaxial pipes with a variable radius ratio

Numerical study and artificial neural network modeling of the tube banks arrangement considering exergetic performance

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