Topic
Marangoni effect
About: Marangoni effect is a research topic. Over the lifetime, 5336 publications have been published within this topic receiving 98562 citations. The topic is also known as: Gibbs–Marangoni effect.
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TL;DR: In this article, the authors analyzed the force balance on a cylindrical drop in a Hele-Shaw cell, subjected to a Marangoni flow caused by a surface tension gradient.
Abstract: We analyse the force balance on a cylindrical drop in a Hele-Shaw cell, subjected to a Marangoni flow caused by a surface tension gradient. Depth-averaged Stokes equations, called Brinkman equations, are introduced and a general closed form solution is obtained. The validity of the averaging procedure is ascertained by considering a linear surface tension gradient acting on a cylindrical flattened drop. The Marangoni-driven flow field and resulting force predicted by the Brinkman model are seen to match well a full three-dimensional direct numerical simulation. A closed form expression of the force acting on the drop is obtained, calculated from contributions due to the normal viscous stress, tangential viscous stress, and pressure fields, integrated on the drop perimeter. This expression is used to predict the force balance when a stationary droplet is submitted to both a carrier flow and a Marangoni flow. We show that previous results in the literature had underestimated by a factor two the Marangoni-induced force.
36 citations
TL;DR: In this paper, a numerical study of laminar magnetohydrodynamic thermosolutal Marangoni convection along a vertical surface in the presence of the Soret and Dufour effects has been performed.
36 citations
TL;DR: In this paper, the authors present a similarity solution for Marangoni induced flow both for the velocity profile and the temperature profile, assuming developing boundary-layer flow along a surface with various imposed temperature profiles.
36 citations
TL;DR: In this paper, the influence of Marangoni convection on nonlinear heat sink/source is illustrated by Soret and Dufour effects on the activation energy of activation energy.
Abstract: The objective of this study is to illustrate the influence of Marangoni convection, nonlinear heat sink/source, thermal radiation, viscous dissipation, activation energy, Soret and Dufour effects o...
36 citations
TL;DR: In this article, a new heat transfer constitutive equation is proposed based on N -diffusion proposed by Philip and the abnormal convection-diffusion model proposed by Pascal in which the heat diffusion depends nonlinearly on both the temperature and the temperature gradient with modified Fourier heat conduction for power-law fluid.
36 citations