Homann Stagnation Point Flow and Heat Transfer of Hybrid Nanofluids Over a Permeable Radially Stretching/Shrinking Sheet

Kho, Yap Bing; Jusoh, Rahimah; Zuki, Salleh Mohd; Ariff, Mohd Hisyam Mohd; Pop, Ioan

doi:10.37934/arfmts.85.1.101112

Cited by 2 publications

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“…Modified Buongiorno nanofluid models were used to investigate the effects of variable thermal conductivities and heat sources on heat transfer characteristics. On porous stretched/contracted plates, Kho et al [ 39 ] studied two-dimensional Hermann stagnation-point flows and heat transfer of hybrid nanofluids. Numerical analysis of hybrid nanofluid flows in porous media in a non-axisymmetric stagnation region was conducted by Waini et al [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Spherical Hybrid Nanoparticles for Homann Stagnation-Point Flow in Porous Media via Homotopy Analysis Method

You

Cui

2023

Nanomaterials

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Non-axisymmetric stagnant-point flows for flat plates in porous media containing spherical Cu-Al2O3-H2O nanoparticles are studied using the homotopy analysis method (HAM). The governing equations are transformed into three coupled non-linear ordinary differential equations through similarity transformations. A large degree of freedom is provided by HAM when selecting auxiliary linear operators. By transforming nonlinear coupled ordinary differential equations with variable coefficients into linear ordinary differential equations with constant coefficients, nonlinear coupled ordinary differential equations can be solved. Over the entire domain, these equations can be solved approximately analytically. The analysis involves a discussion of the impact of many physical parameters generated in the proposed model. The results have shown that skin friction coefficients of Cfx and Cfy increase with volume fraction of hybrid nanofluid and the coefficient of permeability increasing. For the axisymmetric case of γ = 0, when volume fraction, φ, φ1, φ2 = 0, 5%, 10%, 20%, Cfx = Cfy = 1.33634, 1.51918, 1.73905, 2.33449, it can be found that the wall shear stress values increase by 13.68%, 30.14%, and 74.69%, respectively. In response to an increase in hybrid nanofluid volume fractions, local Nusselt numbers Nux increase. Nux decrease and change clearly with the coefficient of permeability increasing in the range of γ < 0; the values of Nux are less affected in the range of γ > 0.

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Section: Introductionmentioning

confidence: 99%

Spherical Hybrid Nanoparticles for Homann Stagnation-Point Flow in Porous Media via Homotopy Analysis Method

You

Cui

2023

Nanomaterials

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“…Wahid et al, [22] analyzed the effect of slip velocity on hybrid nanofluid flow over an exponentially stretching or shrinking permeable sheet in the presence of heat generation. Recently, Kho et al, [23] investigated the Homann stagnation point flow and heat transfer of hybrid nanofluids past a permeable radially stretching or shrinking surface.…”

Section: Introductionmentioning

confidence: 99%

An Exact Solution of MHD Hybrid Nanofluid over a Stretching Surface Embedded in Porous Medium in the Presence of Thermal Radiation and Slip with Suction

Saupi

Ghani

Arifin

et al. 2023

CFDL

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A comprehensive study of magnetohydrodynamics (MHD) hybrid copper-alumina nanofluid flow towards a permeable stretching sheet embedded in porous medium is analyzed analytically. The flow problem is mathematical modeled into nonlinear partial differential equations, which are reduced into ordinary differential equations via similarity transformation. The analytical solutions for momentum and energy equations are found. The effects of the porosity on velocity and temperature profiles are analyzed graphically, while the skin friction coefficient and the local Nusselt number are displayed in data tabulation. The results show that increasing the porosity parameter decrease the skin friction coefficient and heat transfer rate.

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Homann Stagnation Point Flow and Heat Transfer of Hybrid Nanofluids Over a Permeable Radially Stretching/Shrinking Sheet

Cited by 2 publications

References 0 publications

Spherical Hybrid Nanoparticles for Homann Stagnation-Point Flow in Porous Media via Homotopy Analysis Method

Spherical Hybrid Nanoparticles for Homann Stagnation-Point Flow in Porous Media via Homotopy Analysis Method

An Exact Solution of MHD Hybrid Nanofluid over a Stretching Surface Embedded in Porous Medium in the Presence of Thermal Radiation and Slip with Suction

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