Nodal/saddle stagnation-point boundary layer flow of CuO–Ag/water hybrid nanofluid: a novel hybridity model

Dinarvand, Saeed

doi:10.1007/s00542-019-04332-3

Cited by 96 publications

(60 citation statements)

References 40 publications

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“…where F(η) and G(η) are small relatives of f 0 (η) and θ 0 (η), respectively, and γ is an unknown eigenvalue parameter, which need to be determined. Substituting Equation (16) in Equations (13)- (14) by considering τ = 0, gives the following linearized eigenvalue problem:…”

Section: Stability Analysismentioning

confidence: 99%

“…This model has been constructed by considering a solid volume fraction of nanoparticles in the base fluid, and, later, the governing equations have been solved numerically by employing the finite volume method. As a result, this model has been widely considered by many scientists, engineers, and mathematicians, such as Benzema et al [3], Dero et al [4], Lund et al [5,6], Dogonchi, et al [7,8], Amini, et al [9], Zaib et al [10], Raza et al [11], Rasool et al [12,13], Dinarvand et al [14], and Roşca, et al [15] to investigate different types of flow. Furthermore, to keep the demand of the high heat transfer rate from industries and other sectors, researchers have introduced a new kind of the nanofluid by considering the two different types of the solid particles in the single convectional base fluid.…”

Section: Introductionmentioning

confidence: 99%

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Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

et al. 2020

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In this paper, the unsteady magnetohydrodynamic (MHD) flow of hybrid nanofluid (HNF) composed of C u − A l 2 O 3 /water in the presence of a thermal radiation effect over the stretching/shrinking sheet is investigated. Using similarity transformation, the governing partial differential equations (PDEs) are transformed into a system of ordinary differential equations (ODEs), which are then solved by using a shooting method. In order to validate the obtained numerical results, the comparison of the results with the published literature is made numerically as well as graphically and is found in good agreements. In addition, the effects of many emerging physical governing parameters on the profiles of velocity, temperature, skin friction coefficient, and heat transfer rate are demonstrated graphically and are elucidated theoretically. Based on the numerical results, dual solutions exist in a specific range of magnetic, suction, and unsteadiness parameters. It was also found that the values of f ″ ( 0 ) rise in the first solution and reduce in the second solution when the solid volume fraction ϕ C u is increased. Finally, the temporal stability analysis of the solutions is conducted, and it is concluded that only the first solution is stable.

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Section: Stability Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

et al. 2020

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“…The hybrid nanofluid parameters k , , , nf nf nf nf ρ µ σ represent the density, dynamic viscosity, electrical conductivity, thermal conductivity can be used as 26 :…”

Section: Formulationmentioning

confidence: 99%

“…Seth et al 25 examined semi analytically with the aid of OHAM to study the flow of nanofluid through an elongated plane by the implication of magnetic properties and also examined the entropy generation. Further, the researchers [26][27][28][29][30][31] made noticeable results their analysis in convective heat transfer. Acharya et al 32 explored a computational work for analyzing the multiple slip effects on chemically reacting Williamson fluid flow in permeable medium.…”

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confidence: 99%

3-D magnetohydrodynamic AA7072-AA7075/methanol hybrid nanofluid flow above an uneven thickness surface with slip effect

Tlili

Nabwey

Ashwinkumar

et al. 2020

Sci Rep

108

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A 3-D magnetohydrodynamic flow of hybrid nanofluid across a stretched plane of non-uniform thickness with slip effects is studied. We pondered aluminum alloys of AA7072 and AA7072 + AA7075 in methanol liquid. The aluminum alloys amalgamated in this study are uniquely manufactured materials, possessing enhanced heat transfer features. AA7072 alloy is a composite mixture of Aluminum & Zinc in the ratio 98 & 1 respectively with added metals Silicon, ferrous and Copper. Equally, AA7075 is a mixture of Aluminum, Zinc, Magnesium, and Copper in the ratio of ~90, ~6, ~3 and ~1 respectively with added metals Silicon ferrous and Magnesium. Numerical solutions are attained using R-K based shooting scheme. Role of physical factors on the flow phenomenon are analyzed and reflected by plots and numerical interpretations. Results ascertain that heat transfer rate of the hybrid nanoliquid is considerably large as matched by the nanofluid. The impact of Lorentz force is less on hybrid nanofluid when equated with nanofluid. Also, the wall thickness parameter tends to improve the Nusselt number of both the solutions. Advanced electronic gadgets frequently encounter challenges because of heat control from enhanced thermal rise or reduction of available space for the thermal emission. Such drawbacks are overwhelmed by developing a preeminent model for heat-repelling gadgets or by amplifying thermal transport features. Nanofluid is a unique and well-suited fluid to fit for all needs. Initially, Choi 1 has experimented on the treatment of solid particles in conventional liquids to improve its thermal performance characterized as nanoliquid. Due to its marvelous thermal and chemical properties, less volume and enhanced thermal properties, it is emerging as an extensively used cooling agent. Nanofluid has entered in many areas of science and engineering, and few are witnessed in nuclear cooling, biomedical applications, electronic cooling, etc. Because of its massive demand, it has attracted the research community to develop a new class of nanofluids. Few researchers (2-11) provided the theoretical and experimental studies for developing nanofluids in terms of preparation methods, applications and enhancing its thermal properties. Further, Animasaun et al. 12 deliberated the comparative study for distinct magnitude aluminum nanomaterials suspended in water, namely, 36 nanometers and 47 nanometers and predicted that 36 nm nanoparticle used to attain maximum flow velocity than other. Asadi et al. 13 explained the flow of nanofluid (10 nanometer-sized Fe 3 O 4 nanoparticles) across a sinusoidal crumpled section accounting the magnetic field effects. Later, Kumar et al. 14 elaborated the stagnated flow caused by non-Newtonian liquids over a strained cylinder using CC heat flux model. They concluded that friction factor parameter hikes significantly in Williamson liquid as compared with Casson liquid under the influence of thermal relaxation parameter. This kind of work was prolonged by Bai et al. 15 using Oldroyd-B nanofluid. MHD describes t...

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“…The rate of heat transfer is prominently higher with the augmentation of the Biot number and Ag nanoparticles concentration. journal.ump.edu.my/daam ◄ researchers also consider various types of physical parameters and flow configuration of hybrid nanofluids to explore their full heat transfer potential [21]- [26]. Recently, an interesting finding has been obtained by Chahregh and Dinarvand [27] where they found that TiO2-Ag/blood hybrid nanofluid can be a promising medium for drug delivery in the respiratory system.…”

Section: Introductionmentioning

confidence: 99%

Mathematical analysis of the flow and heat transfer of Ag-Cu hybrid nanofluid over a stretching/shrinking surface with convective boundary condition and viscous dissipation

Jusoh

Naganthran

Jamaludin

et al. 2020

DAAM

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Hybrid nanofluid has a vast potential of applications in the cooling system due to the high thermal conductivity. This study emphasizes on the impact of the convective boundary condition and viscous dissipation to the heat transfer of Ag-Cu hybrid nanofluid. A suitable similarity transformation is used to transform the partial differential equations of mass, momentum and energy into the ordinary differential equations. A finite difference code known as bvp4c in Matlab is employed to generate the numerical solutions. Stability analysis is conducted since dual solutions are generated in this study and the first solution exhibits the stability properties. The influence of variations in the suction parameter, viscous dissipation, nanoparticles concentration and Biot number on the on the temperature and velocity profiles of the hybrid nanofluid are portrayed. The rate of heat transfer is prominently higher with the augmentation of the Biot number and Ag nanoparticles concentration.

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Nodal/saddle stagnation-point boundary layer flow of CuO–Ag/water hybrid nanofluid: a novel hybridity model

Cited by 96 publications

References 40 publications

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

3-D magnetohydrodynamic AA7072-AA7075/methanol hybrid nanofluid flow above an uneven thickness surface with slip effect

Mathematical analysis of the flow and heat transfer of Ag-Cu hybrid nanofluid over a stretching/shrinking surface with convective boundary condition and viscous dissipation

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