Marangoni flow
3D analysis of crystal/melt interface shape and Marangoni flow instability in solidifying liquid bridges
... The Marangoni flow becomes more and more confined near the free surface (the radial extension of the vortex cells in the meridian plane becomes approximately equal to the axial extension of the liquid zone ...
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Influence of buoyancy forces on Marangoni flow instabilities in liquid bridges
... opposing to Marangoni flow depending on the relative orientation of the gravity vector and of the temperature gradient. However the standing wave regime is more stable for heating from below with respect to ...
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Parallel solution of the three-dimensional Marangoni flow instabilities in liquid bridges
... the flow is actually three-dimensional, vital information is ...on Marangoni flow instability show that the supercritical flow and temperature fields are three-dimensional, and this peculiar ...
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Patterning behavior of gravitationally modulated supercritical Marangoni flow in liquid layers
... by Marangoni flow leads to a periodic response consisting of the temporal alternance of two main circulation ...reversed flow appears at the free ...
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Flight results on Marangoni flow instability in liquid bridges
... the onset of instability can be interpreted as a superposition of two counter-propagating waves, characterized by an axial and an azimuthal component, with a front wave forming a certain angle with the axis of the ...
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Convective heat transfer due to thermal Marangoni flow about two bubbles on a heated wall
... the flow around bubbles of various sizes with different amounts of dissolved gas for subcooled boiling in reduced ...thermal Marangoni convection about a single hemispherical ...of Marangoni numbers ...
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Numerical Investigation of Bubble Induced Marangoni Convection: Some Aspects of Bubble Geometry
... The Prandtl number for this study was Pr =110. Betz and Straub (2001) produced results where several experimental studies were compared with numerical data which indicated a relative independence of Marangoni ...
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Tear Film Dynamics Concerning A Lipid Reservoir
... Jones et. al. [14] proposed a model for the vertical cross-section of the eye to study the aqueous and lipid layers; the goal of the work was to capture the experimentally observed upward drift of the tear film after the ...
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Three-dimensional numerical simulation of Marangoni instabilities in non-cylindrical liquid bridges in microgravity
... axisymmetric Marangoni flow (Ma<Mac1), performed in order to study the effect of the surface shape on the features of the stable Marangoni convection, have shown that for all the cases ...
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Influence of geometrical aspect ratio on the oscillatory Marangoni convection in liquid bridges
... Oscillatory Marangoni convection in silicone oil liquid bridges is investigated by three- dimensional, time-dependent numerical solutions of the model equations and by micro-scale ...the flow field in a ...
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An alternative theoretical approach for the derivation of analytic and numerical solutions to thermal Marangoni flows
... For Marangoni flow an additional bottleneck is represented by the need to satisfy a non-homogeneous kinematic boundary condition at the free interface, which should be regarded as the main motivation for ...
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Walls and domain shape effects on the thermal marangoni migration of three-dimensional droplets
... the Marangoni number is ...the Marangoni number, the distortion of the temperature field in the region between the droplet and the wall results in a net force with a component directed towards the ...
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Penetrative Bénard Marangoni Convection in a Micropolar Ferrofluid Layer via Internal Heating and Submitted to a Robin Thermal Boundary Conditions
... cro-rotation of the particles in the study. Based on this fact, studies have been undertaken by treating ferrofluids as micropolar fluids and the theory of micro- polar fluid proposed by Eringen [2] has been used in ...
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Marangoni Boundary Layer Flow in Micropolar Fluid
... Steady Marangoni boundary layer flow of a micropolar fluid, with the interface temperature assumed to be a quadratic function of the distance x along the interface, is considered in this ...
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Fluid Flow and Mixing Induced by AC Continuous Electrowetting of Liquid Metal Droplet
... electroosmotic flow originated from the interaction between the tangential electrical field and the double layer charge induced on the surface of a pair of coplanar meandering electrodes for mixing ...driven ...
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Marangoni convection in a fluid layer overlying a layer of an anisotropic porous layer with deformable free surface
... Figure 5 shows the effect of varying β on Mc as a function of ζ. We note that virtually all values of β > 1 have no effect on onset of convection. When fluid layer is relatively thin, however, an increase in β from ...
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Effect of non-uniform basic temperature gradients on Marangoni convection with a boundary slab of finite conductivity
... model in which each layer has infinite depth and examine the local behavior of the system near the interface. Even though single layer systems and double layers systems heated from below have received a great deal of ...
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Surface Tensions of Fe (30 40 mol%) Si C Alloys at 1523 1723 K
... to measure the surface tension of FeSiC alloys with varying Si content (28 mol%) and with a constant C content of 12 mol% at 1723 K. He found that increasing the Si content remarkably decreased the surface tension. He ...
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PREDICTION OF BINARY MIXTURE BOILING HEAT TRANSFER IN SYSTEMS WITH STRONG MARANGONI EFFECTS
... The Marangoni effect was further explored by McGillis and Carey (1993) who investigated the boiling performance of several alcohol/water binary mixtures and compared them to their respective pure ...the ...
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Effects of Non Uniform Temperature Gradients on Triple Diffusive Marangoni Convection in a Composite Layer
... parabolic profile is the most stable one and the linear profile is the most unstable one as the thermal Marangoni numbers are highest and lowest respectively, for a given set of fixed values of parameters, ...
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