Web(intensive Marangoni effect) equation ( 17 ) reduces to Sh = r. Equation ( 17 ) is plotted in figure 2 for various values of r and Sc. The ratio (L/H) and b are assumed to be equal to … WebJul 31, 2024 · Using these results and equation (3), we obtain the maximum Marangoni convection flow speed and the required time to establish the quasi-steady state for the …

(PDF) Phase field models and Marangoni flows - ResearchGate

The Marangoni effect (also called the Gibbs–Marangoni effect) is the mass transfer along an interface between two phases due to a gradient of the surface tension. In the case of temperature dependence, this phenomenon may be called thermo-capillary convection (or Bénard–Marangoni convection). See more This phenomenon was first identified in the so-called "tears of wine" by physicist James Thomson (Lord Kelvin's brother) in 1855. The general effect is named after Italian physicist Carlo Marangoni, who studied it for his … See more Since a liquid with a high surface tension pulls more strongly on the surrounding liquid than one with a low surface tension, the presence of a gradient in surface tension will … See more Under earth conditions, the effect of gravity causing natural convection in a system with a temperature gradient along a fluid/fluid interface is usually much stronger than the Marangoni effect. Many experiments (ESA MASER 1-3) have been conducted under See more • Motoring Oil Drops Physical Review Focus February 22, 2005 • Thin Film Physics, ISS astronaut Don Pettit demonstrate. YouTube-movie. See more As an example, wine may exhibit a visible effect called "tears of wine". The effect is a consequence of the fact that alcohol has a lower surface tension and higher volatility than water. The … See more A familiar example is in soap films: the Marangoni effect stabilizes soap films. Another instance of the Marangoni effect appears in the … See more • Plateau–Rayleigh instability — an instability in a stream of liquid • Diffusioosmosis - the Marangoni effect is flow at a fluid/fluid interface due to a gradient in the … See more WebJul 2, 2015 · The Marangoni number is the nondimensional number that gives the ratio between the thermocapillary effect and the viscous forces. is the the length scale of the system in m, is the maximum … monarch insurance company hawaii

VOF method and Marangoni flows -- CFD Online Discussion Forums

WebJul 5, 2024 · Besides, the Marangoni effect on the droplet-induced additional pressure loss also strongly depends on three other independent parameters, i.e., it is inhibited by decreasing the size ratio of the drop to the channel, increasing the viscosity ratio of the drop to the surrounding fluid, or increasing the capillary number. WebJan 1, 2014 · The Marangoni effect refers to the variation of surface tension of a liquid with temperature (thermocapillarity) or with the concentration of a surfactant (solutal Marangoni effect). The variation of surface tension in turn leads to convective motion of the fluid: Marangoni convection. ... Equation 1 contains two independent free parameters, ... WebJun 8, 2024 · Marangoni effects, which were first explained by Thomson 26, occur when the interfacial tension along the interface between two media is different. As a result, a secondary flow is generated... iay nic in 2022