Stagnation-point flow of Ag-CuO/water hybrid nanofluids over a permeable stretching/shrinking sheet with temporal stability analysis

Recent research has reported on the energy and mass transition caused by Casson hybrid nanofluid flow across an extended stretching sheet. Thermal and velocity slip conditions, heat absorption, viscous dissipation, thermal radiation, the Darcy effect, and thermophoresis diffusion have all been considered in the study of fluid flow. Fluid flow is subjected to an angled magnetic field to control the flow stream. Cu and Al 2 O 3 NPs are dispensed into the Casson fluid to create a hybrid nanofluid (blood). The suggested model of flow dynamics is an evolving nonlinear system of PDEs, which is then reduced to a system of dimensionless ODEs using similarity proxies. The resulting set of ODEs is solved using the analytical program "HAM" for further processing. However, it has been found that the effects of the suction parameter and Darcy Forchhemier considerably reduced the energy transference rate of hybrid nanoliquids. It has been discovered that the effects of thermal radiation and heat absorption increase the energy transfer rate. Furthermore, the velocity and energy transmission rate are noticeably amplified by the dispersion of copper and cobalt ferrite nanoparticles in the base fluid.

show abstract

“…The modeled equations are stated as [52]:

\begin{equation} \frac{{\partial u}}{{\partial x}} + \frac{{\partial v}}{{\partial y}} = 0,. \end{equation}

\begin{eqnarray} u\frac{{\partial u}}{{\partial x}} + v\frac{{\partial u}}{{\partial y}} &=& {\nu _{hnf}}\left( {1 + \frac{1}{\beta }} \right)\frac{{{\partial ^2}u}}{{\partial {y^2}}} - \frac{{{\sigma _{hnf}}}}{{{\rho _{hnf}}}}B_0^2u{{\mathop{\rm Sin}\nolimits} ^2}\left( \theta \right)\nonumber\\ && - \frac{{{\upsilon _{hnf}}}}{{{K^*}}}u - \frac{1}{{{\rho _{hnf}}}}{F_0}{u^2} + g\left( {\frac{{{{\left( {\rho {\beta _T}} \right)}_{hnf}}}}{{{\rho _{hnf}}}}\left( {T - {T_\infty }} \right)} \right), \end{eqnarray}

\begin{matrix} u \frac{\partial T}{\partial x} + v \frac{\partial T}{\partial y} & = & α_{h n f} \frac{\partial^{2} T}{\partial y} \end{matrix}

…”

Section: Mathematical Formulationmentioning

confidence: 99%

Heat and mass transfer through MHD Darcy Forchheimer Casson hybrid nanofluid flow across an exponential stretching sheet

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Most review studies also ascertained that the hybrid nanofluid contributes to an extra thermal conductivity as compared to the single nanofluid [22–24]. Besides, few researchers also have actively investigated the hybrid nanofluid with various flow geometries either on the steady or unsteady flow [25–30].…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamics unsteady separated stagnation‐point (USSP) flow of a hybrid nanofluid on a moving plate

et al. 2022

View full text Add to dashboard Cite

In view of the unique properties in the hybrid nanofluids, this working fluid has been widely applied in industrial and technological sectors along with the substantial growth of numerical and experimental studies. Hence, this study contributes to the thermal characteristics and flow behavior of magnetohydrodynamics (MHD) unsteady separated stagnation point (USSP) flow of Cu-Al 2 O 3 /water nanofluid in a two-dimensional system considering the shifting plate. The results are generated using the bvp4c package by first reducing the governing model. The results show that for the decelerating flow case, dual solutions exist while the steady and accelerating flow cases admit a unique solution. The critical values (separation from laminar to turbulent flow) and separation values (separation from attached flow solution/AFS to reverse flow solution/RFS) are observed and collected for different Hartmann number, acceleration parameter and fluids. The Cu-Al 2 O 3 /water nanofluid has the maximum thermal rate followed by Cu-water and pure water. Meanwhile, the magnetic field and acceleration parameter are also the contributing factors for the thermal enhancement and the expansion of the boundary layer separation.

show abstract

“…Rashad et al [4] evaluated the magneto flow of hybrid-nanoliquids containing Ag and Cu nanomaterials over a cylinder. Arani and Hossein [5] analyzed the stagnation point flow of -Ag CuO H O & 2 hybrid nanoliquids via moving surface. Sadaf and Abdelsalam [6] considered the consequences of hybrid nanoparticles with various boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

“…W   0.1 0.6, q   1. 5 1.8, w are discussed. The physical consequence of flow parameters against subjective flow fields are graphically highlighted with physical justifications.…”

mentioning

confidence: 96%

On the magnetized 3D flow of hybrid nanofluids utilizing nonlinear radiative heat transfer

et al. 2021

View full text Add to dashboard Cite

This article analyzes the heat transfer, non-linear thermal radiation, the Cattaneo-Christov heat flux model and velocity slip effects in hybrid nanofluid flow over a 3D moving sheet. The hybrid type nanoparticles like Ag-Cu and MoS2 and GO are suspended in working liquid. Hybrid nanoliquid is homogeneous-mixture with novel physical and chemical structures making it a promising option for improving thermal efficiency. Hybrid nanoliquids have high ability to absorb and preserve the hydrogen because of their very huge unique surface-area and distinctive and unusual nature of an each nanostructure. Nanostructure carbon atoms like graphite, graphene and few metals like molybdenum and magnesium have recently been found to store hydrogen due to their larger storage-capacity and the higher dehydrogenation and hydrogenation speeds. The system of the mathematical relation in PDEs form is converted to system of ODEs by employing suitable variables. The bvp4c tool available in computational software MATLAB is used for solving the dimensionless ordinary differential system. Furthermore, the flow expectations for each physical flow parameter like 0.1 ≤ α ≤ 1.2 , 0.4 ≤ β ≤ 1.2 , 2.0 ≤ P r ≤ 5.0 , 0.1 ≤ γ ≤ 1.2 , 0.2 ≤ R e ≤ 0.8 , 0.1 ≤ M ≤ 1.2 , 0.0 ≤ R d ≤ 0.8 , 0.1 ≤ E c ≤ 0.4 , 0.1 ≤ N r ≤ 1.2 , 0.2 ≤ ϕ 1 = ϕ 2 ≤ 0.5. , 0.1 ≤ Ω ≤ 0.6 , 1.5 ≤ θ w ≤ 1.8 , are discussed. The physical consequence of flow parameters against subjective flow fields are graphically highlighted with physical justifications. The vitality of prominent parameters against velocity field and temperature distribution is illustrated through graphs. The velocity field diminishes with a larger velocity slip parameter. The velocity field is enhanced by the higher estimations of the Grashof number. The consequence of temperature ratio parameter on thermal field is delineated. By enhancing the thermal relaxation parameter, the thermal field reduces.

show abstract

Stagnation-point flow of Ag-CuO/water hybrid nanofluids over a permeable stretching/shrinking sheet with temporal stability analysis

Cited by 53 publications

References 43 publications

Heat and mass transfer through MHD Darcy Forchheimer Casson hybrid nanofluid flow across an exponential stretching sheet

Heat and mass transfer through MHD Darcy Forchheimer Casson hybrid nanofluid flow across an exponential stretching sheet

Magnetohydrodynamics unsteady separated stagnation‐point (USSP) flow of a hybrid nanofluid on a moving plate

On the magnetized 3D flow of hybrid nanofluids utilizing nonlinear radiative heat transfer

Contact Info

Product

Resources

About