Marangoni Instability in Chemical Absorption

Marangoni Instability during Absorption Accompanied by Chemical Reaction

Based on an extended model of Marangoni convection during absorption accompanied by chemical reaction certain characteristics of the process are studied. Thus, the probability of oscillatory modes occurring in the system is analysed, the dimensions of the convective cells are evaluated and the gas-liquid contact time necessary for the instability to appear is determined. The quantitative conclu...

Long-wave Marangoni instability with vibration

Linear analysis of surface deflection in bénard-marangoni instability

2014 Linear analysis is used to study the free surface deflections of a fluid heated from below. Numerical calculations provide the regions for which the relief is convex or concave and the influence of the fluid parameters on the deflection. These theoretical results agree very well with the experimental ones obtained previously. J. Physique 46 (1985) 2047-2051 1 DTCEMBRE 1985,

Cascade of structures in long-wavelength Marangoni instability

The long-wavelength instability for thermocapillary-driven convection in two dimensions is studied numerically. The system under consideration consists of a horizontal periodical liquid layer bounded from below by a rigid wall and from above by a deformable free surface. The liquid is heated from the bottom wall and cooled from above. The problem can be approximated by the Stokes equation and h...

Threshold of Bénard-Marangoni instability in drying liquid films

We here show how evaporation/condensation processes lead to efficient heat spreading along a liquid/gas interface, thereby damping thermal fluctuations and hindering thermocapillary flows. This mechanism acts as an effective thermal conductivity of the gas phase, which is shown to diverge when the latter is made of pure vapor. Our simple (fitting-parameter–free) theory nicely agrees with measur...