Effect of an insoluble surfactant film on the stability of the concentration-driven Marangoni flow

Мизев, А. И.; Трофименко, А. И.

doi:10.1134/s0015462814010050

Cited by 16 publications

(16 citation statements)

References 30 publications

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“…Данная работа направлена на экспериментальное изучение условий возникновения вторичных движений жидкости в конвективных системах с границей раздела, содержащей адсорбированную плёнку поверхностно-активного вещества (ПАВ). Подобная пленка формируется и удерживается в динамически равновесном состоянии благодаря поверхностным течениям, вызванным внешним набегающим потоком либо созданным перепадом поверхностного натяжения за счет градиента температуры или концентрации другого ПАВ [4][5][6][7].…”

Section: Introductionunclassified

“…В большинстве экспериментов в области плёнки наблюдается установившийся режим течения с азимутальной периодичностью [4][5][6][7]. Последнее заставляет усомниться в правомерности общепри-нятой практики -ограничиваться при численном исследовании подобных задач осесимметричной постановкой.…”

Section: Introductionunclassified

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Mechanisms of formation vortex structures at the liquid-gas interface with an adsorption layer

Shmyrova¹,

Shmyrov²

2020

Bulletin of Perm University. Physics

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Experimental results of a homogeneous (along the coordinate transverse to the stream) flow instability during the interaction with a film of surfactant adsorbed at the flat interface are presented. The flow was formed at a point-like heat by radiation and a source of surfactants (acetone drops). It is proved that a small value of the film shear viscosity is one of the requirements for the vortices formation process. The possibility to use the dimensionless parameter (the elasticity number) to describe the system behavior in 3D geometry is shown. A potential mechanism for the vortices origin is proposed. The results of the visualization of the water surface uniform flow around a solid sphere are presented.

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Section: Introductionunclassified

Mechanisms of formation vortex structures at the liquid-gas interface with an adsorption layer

Shmyrova¹,

Shmyrov²

2020

Bulletin of Perm University. Physics

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“…Due to the meaning, the heat and mass transfer process of boundary layer Marangoni flow has been comprehensively scrutinized several researchers. Mize and Trofimenko [4] examined the azimuthal wave number to enhance the Marangoni number and to suppress with rise in the density of the surfactant. Manjare et al [5] experimentally studied the Marangoni flow effects.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on MHD Marangoni Convective Flow of Nanofluid through a Porous Medium with Heat and Mass Transfer Characteristics

Raju¹,

Prasad²,

Raju³

et al. 2018

IJET

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The present study investigates on a steady two-dimensional Marangoni convective flow of nanofluid through a porous medium with heat and mass transfer characteristics. The proposed mathematical model has a tendency to characterize the radiation and chemical reaction effects. The governing equations in the form of partial differential equations have been converted into ordinary differential equations through similarity transformations, which have been solved by using Runge-Kutta method via shooting technique. The characteristics of velocity, temperature and concentration boundary layers are studied for different physical parameters. The local Nusselt and Sherwood numbers are estimated and discussed for aforesaid physical parameters. It is to be noted that the Marangoni ratio parameter is improves the rate of heat transfer and decreases the mass transfer rate.

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“…Due to the significance of Marangoni flow in practical engineering, the investigation of this subject is attracting an increasing amount of experts and scholars. The basic mechanism and the heat transfer process of Marangoni boundary layer flow have been extensively investigated in many literatures . The nanofluid of Marangoni convection on various occasions has been investigated .…”

Section: Introductionmentioning

confidence: 99%

“…The basic mechanism and the heat transfer process of Marangoni boundary layer flow have been extensively investigated in many literatures. [40][41][42] The nanofluid of Marangoni convection on various occasions has been investigated. [43][44][45] Lin and colleagues 46 and Ellahi and colleagues 47 presented research on particle shape effects on Marangoni convection boundary layer flow of a nanofluid.…”

Section: Introductionmentioning

confidence: 99%

Cattaneo–Christov heat flux model for heat transfer of Marangoni boundary layer flow in a copper–water nanofluid

Chen

2017

Heat Trans. Asian Res.

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The Cattaneo–Christov heat flux is first utilized to explore the heat transfer characteristics of Marangoni boundary layer flow in a copper–water nanofluid. The Marangoni boundary layer flow is driven by exponential temperature. Five different types of nanoparticle shapes including sphere, hexahedron, tetrahedron, column and lamina are considered for the copper–water nanofluid. The nonlinear system of partial differential equations is reduced by similarity transformations and then solved numerically by the shooting method. It is found that sphere nanoparticle has better heat transfer enhancement than other nanoparticle shapes and both the temperature and the thickness of the thermal boundary layer are lower for the Cattaneo–Christov heat flux model than the classical Fourier's law of heat conduction.

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Effect of an insoluble surfactant film on the stability of the concentration-driven Marangoni flow

Cited by 16 publications

References 30 publications

Mechanisms of formation vortex structures at the liquid-gas interface with an adsorption layer

Mechanisms of formation vortex structures at the liquid-gas interface with an adsorption layer

Numerical Investigation on MHD Marangoni Convective Flow of Nanofluid through a Porous Medium with Heat and Mass Transfer Characteristics

Cattaneo–Christov heat flux model for heat transfer of Marangoni boundary layer flow in a copper–water nanofluid

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