Marangoni convective MHD flow of SWCNT and MWCNT nanoliquids due to a disk with solar radiation and irregular heat source

Mahanthesh, B.; Gireesha, B. J.; Shashikumar, N.S.; Shehzad, Sabir Ali

doi:10.1016/j.physe.2017.07.011

Cited by 114 publications

(50 citation statements)

References 35 publications

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“…Particle shape also plays an important role in the presence of Marangoni convection. 25 The effect of solar radiation and irregular heat source on Marangoni convection has been studied by Mahanthesh et al 26 Later, many researchers worked on the effects of the thermal radiation, heat source, viscous dissipation, and Joule heating and so on, on the Marangoni convective flow. 27,28 The Dufour effect refers to the temperature difference which is caused by the gradient of concentrations, whereas the force of a temperature gradient acts as a driving force of diffusion of mass termed as the Soret effect.…”

Section: Introductionmentioning

confidence: 99%

Thermal and solutal Marangoni stagnation point Casson fluid flow over a stretching sheet in the presence of radiation, Soret and Dofour effect with chemical reaction

Shaw

Mahanta

Das

2018

Heat Trans. Asian Res.

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The Marangoni flow is involved with microgravity and earth gravity, which causes undesirable effects in crystal growth experiments. Crystal growth experiments were designed in such a manner so as to appraise MIR (space station), which is one of the best platforms for protein crystallization and radiation experiments. In this article, a model is proposed with a stagnation point and a Casson fluid flow at the interface of the plate in the presence of Marangoni convection influenced by a magnetic field and chemical reaction. Furthermore, it is considered that both temperature and concentration surface tension vary linearly with the interface. It is important to choose similarity transformations for implementing nonlinear differential equations into linear ordinary differential equations. We solved the system of differential equations using fourth order Range‐Kutta method with suitable shooting techniques, and the results are displayed through graphs. A comparison is made with the earlier existing literature, and it shows a very good agreement. The results and a detailed discussion of velocity, temperature, and concentration have been shown graphically. The favorable and unfavorable buoyancy force to Marangoni flow, the features of temperature and concentration field, have been investigated.

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Section: Introductionmentioning

confidence: 99%

Thermal and solutal Marangoni stagnation point Casson fluid flow over a stretching sheet in the presence of radiation, Soret and Dofour effect with chemical reaction

Shaw

Mahanta

Das

2018

Heat Trans. Asian Res.

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“…Most researchers have focused their interest on simulating these external forces by utilizing governing equations due to its widespread application in the fields of space processing, industrial manufacturing processes and microgravity science. The significance of Marangoni convective flows in the transportation process of heat and mass into different systems have been thoroughly scrutinized in [9][10][11]. Kumar et al [12] discussed Marangoni convective Casson nanoliquid flow in the presence of chemical reaction and uniform heat source/sink and observed that Marangoni parameter showed dominant behavior in terms of velocity as well as temperature fields.…”

Section: Introductionmentioning

confidence: 99%

On the MHD Casson Axisymmetric Marangoni Forced Convective Flow of Nanofluids

et al. 2019

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The proposed investigation concerns the impact of inclined magnetohydrodynamics (MHD) in a Casson axisymmetric Marangoni forced convective flow of nanofluids. Axisymmetric Marangoni convective flow has been driven by concentration and temperature gradients due to an infinite disk. Brownian motion appears due to concentration of the nanosize metallic particles in a typical base fluid. Thermophoretic attribute and heat source are considered. The analysis of flow pattern is perceived in the presence of certain distinct fluid parameters. Using appropriate transformations, the system of Partial Differential Equations (PDEs) is reduced into non-linear Ordinary Differential Equations (ODEs). Numerical solution of this problem is achieved invoking Runge–Kutta fourth-order algorithm. To observe the effect of inclined MHD in axisymmetric Marangoni convective flow, some suitable boundary conditions are incorporated. To figure out the impact of heat/mass phenomena on flow behavior, different physical and flow parameters are addressed for velocity, concentration and temperature profiles with the aid of tables and graphs. The results indicate that Casson fluid parameter and angle of inclination of MHD are reducing factors for fluid movement; however, stronger Marangoni effect is sufficient to improve the velocity profile.

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“…The impact of CNT in convection heat transportation is examined by Haq et al Sheikholeslami and Rokni addressed the involvement of the Lorentz force in the natural convective flow of nanofluid. Hydromagnetic MWCNT and SWCNT flow of nanofluid under solar radiation was presented by Gireesha et al Hsiao developed a model of efficiency of manufacturing system through Carreau nanofluid. Shashikumar et al have examined the impact of SWCNT and MWCNT on magnetohydrodynamic (MHD) Brinkman‐Forchheimer flow in a microchannel with multiple slips.…”

Section: Introductionmentioning

confidence: 99%

Brinkman‐Forchheimer slip flow subject to exponential space and thermal‐dependent heat source in a microchannel utilizing SWCNT and MWCNT nanoliquids

Shehzad

Mahanthesh

Gireesha

et al. 2019

Heat Trans. Asian Res.

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This communication examines the impact of carbon nanotubes (single-wall carbon nanotubes [SWCNT] and multi-wall carbon nanotubes [MWCNT]) on magnetohydrodynamic Brinkman and Forchheimer flow in a planar microchannel with multiple slips. Flow through a porous medium is modeled via Brinkman and Forchheimer theory. The impacts of thermal-dependent heat source (THS) and exponential space-dependent heat source (ESHS) are deployed. Aspects of Joule and viscous dissipations are also retained. The dimensionless equations are solved using the Runge-Kutta-Fehlberg joint with shooting methodology. The significance of various nondimensional parameters on the flow distributions as well as skin-friction and Nusselt number is illustrated and analyzed. Closed form solution of momentum quantity is developed for a particular case. Obtained numerical results are in perfect agreement with analytical results. Further, the results of SWCNT and MWCNT are compared. K E Y W O R D S Brinkman-Forchheimer model, carbon nanofluid, carbon nanotubes, exponential heat source, Joule heating, microchannel Heat Transfer-Asian Res. 2019;48:1688-1708. wileyonlinelibrary.com/journal/htj 1688 |

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Marangoni convective MHD flow of SWCNT and MWCNT nanoliquids due to a disk with solar radiation and irregular heat source

Cited by 114 publications

References 35 publications

Thermal and solutal Marangoni stagnation point Casson fluid flow over a stretching sheet in the presence of radiation, Soret and Dofour effect with chemical reaction

Thermal and solutal Marangoni stagnation point Casson fluid flow over a stretching sheet in the presence of radiation, Soret and Dofour effect with chemical reaction

On the MHD Casson Axisymmetric Marangoni Forced Convective Flow of Nanofluids

Brinkman‐Forchheimer slip flow subject to exponential space and thermal‐dependent heat source in a microchannel utilizing SWCNT and MWCNT nanoliquids

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