Darcy-Forchheimer flows of copper and silver water nanofluids between two rotating stretchable disks

The main feature of the present numerical model is to explore the behavior of Maxwell nanoliquid moving within two horizontal rotating disks. The disks are stretchable and subjected to a magnetic field in axial direction. The time dependent characteristics of thermal conductivity have been considered to scrutinize the heat transfer phenomena. The thermophoresis and Brownian motion features of nanoliquid are studied with Buongiorno model. The lower and upper disk's rotation for both the cases, same direction as well as opposite direction of rotation is investigated. The subsequent arrangement of the three dimensional Navier Stoke’s equations along with energy, mass and Maxwell equations are diminished to a dimensionless system of equations through the Von Karman’s similarity framework. The comparative numerical arrangement of modeled equations is further set up by built-in numerical scheme “boundary value solver” (Bvp4c) and Runge Kutta fourth order method (RK4). The various physical constraints, such as Prandtl number, thermal conductivity, magnetic field, thermal radiation, time relaxation, Brownian motion and thermophoresis parameters and their impact are presented and discussed briefly for velocity, temperature, concentration and magnetic strength profiles. In the present analysis, some vital characteristics such as Nusselt and Sherwood numbers are considered for physical and numerical investigation. The outcomes concluded that the disk stretching action opposing the flow behavior. With the increases of magnetic field parameter $$M$$ M the fluid velocity decreases, while improving its temperature. We show a good agreement of the present work by comparing with those published in literature.

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“…The required dimensionless form of the system of differential equations given in Eqs. (1)(2)(3)(4)(5)(6)(7)(8)(9) are:…”

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%

“…The entropy generation due to porosity of rotating disk in MHD flow has been investigated by Rashidi et al 7 . Hayat et al 8 scrutinized the transfer of heat with viscous nanoliquid among two stretchable rotating sheets. The thermal conductivity that depends on temperature in Maxwell fluid over a rotating disk has been studied by Khan et al 9 .…”

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confidence: 99%

The non-Newtonian maxwell nanofluid flow between two parallel rotating disks under the effects of magnetic field

Ahmadian

Bilal

Khan

et al. 2020

Sci Rep

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“…We presume that the free stream velocity isȗ e (x) = cx and wall temperatureT w (x) =T ∞ + bx vary linearly, where c and b are positive constants andT ∞ is ambient temperature. The governing equations under these assumptions through the usual boundary layer and the Boussinesq approximation are written as follows (Hayat et al, 2017;Hussanan et al, 2018):…”

Section: Problem Formulationmentioning

confidence: 99%

“…Mabood et al (2016) discussed the impacts of nonuniform source/sink and MHD on flow of a micropolar fluid in non-Darcy porous medium. Hayat et al (2017) envisaged the influences of Joule heating and thermal radiation on Darcy-Forchheimer flow containing copper/silver nanoparticles between two stretched and rotated disks. Recently, Bakar et al (2018) scrutinized the impact of suction on forced convective flow through a shrinking surface in Darcy porous medium with thermal radiation.…”

Section: Introductionmentioning

confidence: 99%

IMPACT OF NON-DARCY MEDIUM ON MIXED CONVECTIVE FLOW TOWARDS A PLATE CONTAINING MICROPOLAR WATER-BASED TiO2 NANOMATERIAL WITH ENTROPY GENERATION

et al. 2020

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The theme of current research is to explore the impact of entropy generation on mixed convective flow of micropolar fluid containing water-based TiO 2 nanomaterial toward a vertical surface in a non-Darcy porous medium. The results are confined for opposing and assisting flows. Similarity equations are achieved and then worked out numerically by the Keller box technique. The impacts of substantial parameters on temperature distribution, velocity profile, and microrotation velocity, together with the Nusselt number and the skin friction, are illustrated with the help of graphs. Two solutions are achieved in opposing flow while the solution is unique in assisting flow. It is also observed that the separation of boundary layer accelerates due to volume fraction and delays due to micropolar parameter.

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“…Hayat et al . 7 highlighted the heat transmission in Darcy-Forchemmier flow of cupper ( Cu ) and silver (Ag) nanofluid between the gap of two spinning stretchable disks. Muhammad et al .…”

Section: Introductionmentioning

confidence: 99%

Numerical approach towards gyrotactic microorganisms hybrid nanoliquid flow with the hall current and magnetic field over a spinning disk

Algehyne

Alshehri

et al. 2021

Sci Rep

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The article explores the effect of Hall current, thermal radiation, and magnetic field on hybrid nanofluid flow over the surface of a spinning disk. The motive of the present effort is to upgrade the heat transmission rate for engineering and industrial purposes. The hybrid nanofluids as compared to the conventional fluids have higher thermal properties. Therefore, in the present article, a special class of nanoparticles known as carbon nanotubes (CNTs) and iron ferrite nanoparticles are used in the base fluid. The system of modeled equations is depleted into dimensionless differential equations through similarity transformation. The transform equations are further solved through the Parametric Continuation method (PCM). For the parametric study, the physical parameters impact on velocity, energy, mass transmission, and motile microorganism’s concentration profiles have been sketched. The obtained results are compared with the existing literature, which shows the best settlement. It concluded that the heat transmission rate reduces for Hall current and rises with radiative parameter. The results perceived that the addition of CNTs in carrier fluid is more efficacious than any other types of nanoparticles, due to its C–C bond. CNTs nanofluid can be more functionalized for the desired achievement, which can be utilized for a variety of applications by functionalization of non-covalent and covalent modification.

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Darcy-Forchheimer flows of copper and silver water nanofluids between two rotating stretchable disks

Cited by 27 publications

References 42 publications

The non-Newtonian maxwell nanofluid flow between two parallel rotating disks under the effects of magnetic field

The non-Newtonian maxwell nanofluid flow between two parallel rotating disks under the effects of magnetic field

IMPACT OF NON-DARCY MEDIUM ON MIXED CONVECTIVE FLOW TOWARDS A PLATE CONTAINING MICROPOLAR WATER-BASED TiO2 NANOMATERIAL WITH ENTROPY GENERATION

Numerical approach towards gyrotactic microorganisms hybrid nanoliquid flow with the hall current and magnetic field over a spinning disk

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