Boundary layer flow of mixed convection viscoelastic micropolar fluid over a horizontal circular cylinder with aligned magnetohydrodynamic effect

Aziz, Laila Amera; Kasim, Abdul Rahman Mohd; Salleh, Mohd Zuki; Shafie, Sharidan; Yusoff, Wan Nur Syahidah Wan

doi:10.11113/mjfas.v0n0.590

Cited by 5 publications

(4 citation statements)

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“…The present model constituted of governing equations and appropriate boundary conditions for Jeffrey fluid and dust particle respectively. Prior to undertaking the numerical solutions, they are transformed to the ordinary differential equations ( 11)- (15). The numerical method of Runge-Kutta Fehlberg (RKF45) is one of the more practical approaches to adopt for this problem in which the computation is set up in the Maple software.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, combining different types of fluid in the flow field creates another class of fluid model, provided that these fluids need to be compatible with each other. Recently, a number of studies have proposed Jeffrey fluid and viscoelastic fluid being incorporated with micropolar fluid for the case of aligned magnetic field flow [14,15]. In line with this case, however, it has been suggested for the dusty Casson fluid as in two-phase flow model and the solutions are obtained numerically for both Casson fluid and solid particles [16].…”

Section: Introductionmentioning

confidence: 99%

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2020

CFDL

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The numerical results of fluid flow problem that being embedded with the dust particles is presented in this paper. In order to analyze such problem, a two-phase model is constructed by introducing a fluid-particle interaction forces in the momentum equations of fluid and dust phases. The buoyancy forces and aligned magnetic field are considered on the fluid flow. Also, the Newtonian heating boundary condition is induced on the vertical stretching sheet. The suitable similarity transformation is applied to the governing equations of the model which then produces the ordinary differential system. The results are obtained by adapting the Runge-Kutta Fehlberg (RKF45) method whereby the solutions are interpreted in terms of velocity and temperature profiles for Jeffrey fluid and dust particles respectively. The influences of assorted physical parameters are visualized graphically to clarify the flow and heat transfer characteristic for both phases. The discovery found that the presence of the dust particles have an effect on the fluid motion which led to decelerate the fluid transference. The present flow model can match to the single phase fluid cases if the fluid particle interaction parameter is ignored.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Untitled

2020

CFDL

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“…Both studies have demonstrated that magnetic effect does exist on the flow. The study of magneto-convective viscoelastic micropolar has been discussed by Aziz et al, [20] but this study will put more focus on the flow itself in terms of the velocity and boundary layer separation without consideration of the heat transfer process.…”

Section: Introductionmentioning

confidence: 99%

Flow of Viscoelastic Fluid with Microrotation at a Boundary Layer Flow of a Horizontal Circular Cylinder

Aziz

Kasim

Salleh

et al. 2022

CFDL

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In this study, the dynamics of the non-Newtonian viscoelastic fluid with microrotation at a boundary layer of a horizontal circular cylinder is investigated. For this case, Lorentz force is induced by external magnetic field positioned at right angle of the fluid flow, hence the magnetohydrodynamic effect is embedded in the momentum equation of the proposed model in addition to other governing parameters. The constitutive equations are converted to dimensionless form along with the associated boundary conditions before the resulting partial differential equations are solved using finite difference technique in Fortran programming. Results are validated before the velocity and microrotation profiles are examined and the effects of material, viscoelastic and magnetohydrodynamic parameter on the flow is discussed.

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“…Anwar et al, [13] examined the flow in viscoelastic fluid at constant temperature, whereas Ishak et al, [14] found the dual solutions in flow of micropolar fluid. Moreover, Aziz et al, [15] studied the flow of viscoelastic micropolar fluid flow with the effect of magneto-hydrodynamic. Later on, Aziz et al, [16] concentrated on the development model of viscoelastic fluid with the influence of microrotation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation at Lower Stagnation Point Flow Over a Horizontal Circular Cylinder of Brinkman-Viscoelastic Fluid

Haryatie

Kasim

Zokri

et al. 2021

ARFMTS

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Investigations on the characteristics of fluid flow in manufacturing processes are essential since it will determine the quality of the end products. The flow might be involved whether the Newtonian (viscous) or non-Newtonian fluid moving over the different body depending on the process activities. Since the experimental works sometimes costly and hazardous, the study via mathematical approach is necessary to counter the limitations. Hence, this paper aims to investigate the flow at lower stagnation point over a horizontal circular cylinder on Brinkman Viscoelastic fluid embedded in porous medium. Mathematical model is constructed in terms of partial differential equations with some physical conditions to represent the condition of the problem. An appropriate non-dimensional variable is introduced to transform the model into the solvable system which is in less complexity, and then the system is solved using the Runge-Kutta-Fehlberg method. The numerical solutions for the temperature and velocity profiles as well as skin friction and heat transfer coefficient are computed and presented in graphical and tabular form. The feature of the flow and heat transfer characteristics for various values of mixed convection, Brinkman and viscoelastic parameter are analysed and discussed. This study has found that the incremented Brinkman and viscoelastic parameter have declined the fluid velocity while opposite trend is observed for temperature distribution. The theoretical results produced are relevance to researchers and engineers. It can be used for comparative purposes in data validation or experimentation study.

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Boundary layer flow of mixed convection viscoelastic micropolar fluid over a horizontal circular cylinder with aligned magnetohydrodynamic effect

Cited by 5 publications

References 0 publications

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Flow of Viscoelastic Fluid with Microrotation at a Boundary Layer Flow of a Horizontal Circular Cylinder

Numerical Investigation at Lower Stagnation Point Flow Over a Horizontal Circular Cylinder of Brinkman-Viscoelastic Fluid

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