Modeling MHD Stagnation Point Flow of Thixotropic Fluid with Non-uniform Heat Absorption/Generation

Hayat, Tasawar; Faisal, Shah; Khan, Muhammad Ijaz; Alsaedi, Ahmed; Yasmeen, Tabassam

doi:10.1007/s12217-017-9564-7

Cited by 22 publications

(3 citation statements)

References 28 publications

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“…The MHD flow of nanofluid saturating a porous medium is reported by Kumar et al [8]. Few more attempts in this direction have been quoted through the studies [9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Outcomes of double stratification in Darcy–Forchheimer MHD flow of viscoelastic nanofluid

Hayat

Faisal

Hussain

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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This article reports the magnetohydrodynamic flow of second-grade nanofluid induced by a nonlinear stretching surface with deforming thickness. Darcy-Forchheimer is accounted to characterize the impact of the porous medium. Influences of thermal radiation, nonuniform heat generation/absorption and double stratification process are explored for temperature and concentration distributions. Heat and mass transfer are investigated under the influence Brownian motion and thermophoresis effects. Second-grade nanofluid is electrified under the influence of nonuniform applied magnetic field with small magnetic Reynolds number. Nonlinear partial differential equations are first converted into ordinary differential equations. The outcomes are obtained by the optimal homotopy analysis method. The impact of various physical variables that appear in velocity, temperature and concentration are sketched and discussed. Power index, second-grade variable, Darcy number and Hartman number improve the magnitude of skin friction. Thermal stratified variable enhances the heat transfer rate, while a reverse trend is noted in case of radiation. Brownian motion, solutal stratified variable and Schmidt number lower the Sherwood number.

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Section: Introductionmentioning

confidence: 99%

Outcomes of double stratification in Darcy–Forchheimer MHD flow of viscoelastic nanofluid

Hayat

Faisal

Hussain

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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“…Hayat et al [4] examined MHD nonlinear flow of non-Newtonian liquid (thixotropic fluid) considering non-uniform generation/absorption. Khan et al [5] examined flow of viscoelastic material subject to variable thermal conductivity and Cattaneo-Christov heat flux over a variable thicked surface.…”

Section: Introductionmentioning

confidence: 99%

Analysis of entropy generation minimization in flow of Ree-Eyring nanofluid between two coaxially rotating disks

et al. 2021

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The present communication addresses MHD radiative nanomaterial flow of Ree-Eying fluid between two coaxially rotating disks. Both disks are stretchable. Buongiorno model is used for nanofluids. Nanofluid aspects comprise random motion of particles (Brownian diffusion) and thermophoresis. MHD fluid is considered. Furthermore, dissipation, radiative heat flux and Ohmic heating effects are considered to model the energy equation. Total entropy rate is calculated through implementation of second thermodynamics law. Series solutions are developed through homotopy analysis method. Impacts of physical parameters on the velocity, temperature, entropy and concentration fields are discussed graphically. Skin friction coefficient and heat and mass transfer rates are numerically calculated through Tables 2-4. It is noticed that the velocity of liquid particles decreases versus higher estimations of magnetic parameter while it enhances via larger rotational parameter. Temperature field significantly increases in the presence of both Brownian diffusion and thermophoresis parameters.

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“…The present flow expressions are made dimensionless by suitable transformations. The homotopy analysis method [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] is used to obtain the convergent series solutions. Nusselt numbers and skin friction coefficients at both upper and lower disks are discussed.…”

Section: Introductionmentioning

confidence: 99%

Physical aspects of irreversibility in radiative flow of viscous material with cubic autocatalysis chemical reaction

et al. 2019

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Analysis of irreversibility in flow by a stretchable surface has gained much consideration in recent years. Entropy optimization properly computes the second law thermodynamic irreversibilities. Therefore, deterioration of entropy proficiency results in a more useful energy transport process. In this article, a physical aspect of irreversibility in radiative flow of viscous material with quartic autocatalysis chemical reaction is addressed. The flow is discussed between two stretchable rotating disks. Heat transfer occurring in this physical problem is modelled through thermal radiation, Joule heating and viscous dissipation. This is the first time the concept of homogeneous-heterogeneous reactions has been studied with entropy generation. The nonlinear flow expressions are made dimensionless. The obtained equations are then tackled through the homotopy concept. The analysis discloses that the radiation parameter and Eckert number play a vital role in the enhancement of temperature field. The tangential velocity decreases versus the magnetic parameter. The radial component of velocity boosts close to lower disks and it decreases near the upper disks versus the Reynolds number. The variations in the Nusselt number and skin friction are presented graphically with various emerging variables. It is noticed that entropy rate can be controlled by minimizing the impact of Brinkman and Reynolds numbers.

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Modeling MHD Stagnation Point Flow of Thixotropic Fluid with Non-uniform Heat Absorption/Generation

Cited by 22 publications

References 28 publications

Outcomes of double stratification in Darcy–Forchheimer MHD flow of viscoelastic nanofluid

Outcomes of double stratification in Darcy–Forchheimer MHD flow of viscoelastic nanofluid

Analysis of entropy generation minimization in flow of Ree-Eyring nanofluid between two coaxially rotating disks

Physical aspects of irreversibility in radiative flow of viscous material with cubic autocatalysis chemical reaction

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