Electromagnetic couple stress film flow of hybrid nanofluid over an unsteady rotating disc

Usman, Muhammad; Gul, Taza; Khan, Arshad; Alsubie, Abdelaziz; Ullah, Malik Zaka

doi:10.1016/j.icheatmasstransfer.2021.105562

Cited by 53 publications

(20 citation statements)

References 34 publications

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“…This method is still in in the latest research. [31][32][33] The trial solutions for the higher-order linear terms are desired initially. For the nonlinear problem, the trial solution or initial guesses are as follows:…”

Section: Solution By Ohammentioning

confidence: 99%

Comparative analysis of the CNTs nano fluid flow between the two gyrating disks

Khan¹,

Khan

Gul

et al. 2022

Advances in Mechanical Engineering

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Nanofluids play a prominent role in the development of various electronic structures and technological devices. Herein, we devise new and efficient techniques for overcoming the problems faced by the base fluids. This article describes water-based carbon nanotubes, including two major types of single-wall carbon nanotubes (SWCNT) and multi-wall carbon nanotubes (MWCNT). A mathematical model is considered for unsteady three-dimensional CNTs nanofluids flow with a uniform magnetic field between two revolving disks. The basic equations of the modeled flow problem are solved by the BVPh 2.0 package which is implemented using the Optimal Homotopy Analysis Method (OHAM). It has been observed that by stretching the top disk while keeping the lower disk stationary, the rotation aspect is reduced, whilst radial velocity near the top disk significantly increases. Moreover, The higher the values of unsteadiness parameter, the more accurate the temperature profile.

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Section: Solution By Ohammentioning

confidence: 99%

Comparative analysis of the CNTs nano fluid flow between the two gyrating disks

Khan¹,

Khan

Gul

et al. 2022

Advances in Mechanical Engineering

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“…Acharya et al [24] discussed the characteristics of Hall current through a moving disk by including the Cu/TiO 2 nanomaterials suspended into base fluid water along with subject to thermal radiation and magnetic effects. Recently, several researchers [25][26][27][28][29][30][31][32][33][34] explored the significance of hybrid nanofluid flow with different aspects.…”

Section: Introductionmentioning

confidence: 99%

Impact of Smoluchowski Temperature and Maxwell Velocity Slip Conditions on Axisymmetric Rotated Flow of Hybrid Nanofluid past a Porous Moving Rotating Disk

et al. 2022

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Colloidal suspensions of regular fluids and nanoparticles are known as nanofluids. They have a variety of applications in the medical field, including cell separation, drug targeting, destruction of tumor tissue, and so on. On the other hand, the dispersion of multiple nanoparticles into a regular fluid is referred to as a hybrid nanofluid. It has a variety of innovative applications such as microfluidics, heat dissipation, dynamic sealing, damping, and so on. Because of these numerous applications of nanofluids in minds, therefore, the objective of the current exploration divulged the axisymmetric radiative flow and heat transfer induced by hybrid nanofluid impinging on a porous stretchable/shrinkable rotating disc. In addition, the impact of Smoluchowski temperature and Maxwell velocity slip boundary conditions are also invoked. The hybrid nanofluid was formed by mixing the copper (Cu) and alumina (Al2O3) nanoparticles scattered in the regular (viscous) base fluid (H2O). Similarity variables are used to procure the similarity equations, and the numerical outcomes are achieved using bvp4c in MATLAB software. According to the findings, double solutions are feasible for stretching (λ>0) and shrinking cases (λ<0). The heat transfer rate is accelerated as the hybrid nanoparticles increases. The suction parameter enhances the friction factors as well as heat transfer rate. Moreover, the friction factor in the radial direction and heat transfer enrich for the first solution and moderate for the second outcome due to the augmentation δ1, while the trend of the friction factor in the radial direction is changed only in the case of stretching for both branches.

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“…The Lorentz force effect was also smaller on the hybridized fluid when compared with the effect on the nanofluid. Usman et al 21 proposed a model of hybrid nanofluid MHD thin film flow over an unsteady spinning disk that considered the impact of couple stress, and the percentage improvement caused by heat transfer was calculated and shown graphically. Their investigation established that the hybridized fluid has a higher heat transmission capability when compared with that of conventional nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic hybrid nanofluid flow with the effect of Darcy–Forchheimer theory and slip conditions over an exponential stretchable sheet

Usman

Amin

Saeed

2022

Advances in Mechanical Engineering

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The characteristics of water-based hybrid nanofluid flow when passing over an exponentially stretchable sheet with velocity and thermal slip factors are presented. This article provides a concept for a hybridized fluid comprising copper and cobalt iron oxide nanoparticles (NPs) dispersed into a base fluid (water). In addition, physical observations of the heat absorption behavior, the Darcy effect, the thermal radiation, and viscous dissipation are also taken into account. Because of their strong thermophysical properties, copper and cobalt iron oxide NPs are used in a wide range of applications in the engineering and medical fields. To study the dynamics of these NPs, a system of partial differential equations (PDEs) has been generated that forms a highly nonlinear coupled model. The PDE system is converted into nondimensional ordinary differential equations (ODEs) with the aid of similarity replacements. The semi-analytical homotopy analysis method (HAM) is applied to the set of dimensionless ODEs obtained to find the solution. Two engineering parameters, the Nusselt number and the skin friction, are plotted versus various parameters of the hybridized fluid using bar charts. It was observed that the no-slip condition, the suction parameter, and the Darcy–Forchheimer medium enhanced the thermal profile of the hybridized fluid.

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Electromagnetic couple stress film flow of hybrid nanofluid over an unsteady rotating disc

Cited by 53 publications

References 34 publications

Comparative analysis of the CNTs nano fluid flow between the two gyrating disks

Comparative analysis of the CNTs nano fluid flow between the two gyrating disks

Impact of Smoluchowski Temperature and Maxwell Velocity Slip Conditions on Axisymmetric Rotated Flow of Hybrid Nanofluid past a Porous Moving Rotating Disk

Magnetohydrodynamic hybrid nanofluid flow with the effect of Darcy–Forchheimer theory and slip conditions over an exponential stretchable sheet

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