Transition and Modal Structure of Oscillatory Marangoni Convection in Liquid Bridge.

Transition to Chaotic Marangoni Convection in Liquid Bridge

Marangoni convection is investigated in cylindrical column using a liquid with Pr=4. The present results are targeting on the study of the non-linear characteristics of the flow under zero-gravity conditions. The transitions to periodic, quasi-periodic and chaotic flows are investigated numerically. The 3-D oscillatory flow is a result of a supercritical Hopf bifurcation and the periodic orbit ...

Multistability of oscillatory thermocapillary convection in a liquid bridge.

A parametric investigation of the onset of chaos in a liquid bridge was numerically carried out for a medium Prandtl number liquid, Pr = 4, and unit aspect ratio under zero-gravity conditions. Spatiotemporal patterns of thermocapillary flow were successively studied beginning from the onset of instability up to the appearance of the nonperiodic flow and further on. Well-tested numerical code is...

Oscillatory long-wave Marangoni convection in a layer of a binary liquid: hexagonal patterns.

We consider a long-wave oscillatory Marangoni convection in a layer of a binary liquid in the presence of the Soret effect. A weakly nonlinear analysis is carried out on a hexagonal lattice. It is shown that the derived set of cubic amplitude equations is degenerate. A three-parameter family of asynchronous hexagons (AH), representing a superposition of three standing waves with the amplitudes ...

Oscillatory Longwave Marangoni Convection in a Binary Liquid. Part 2: Square Patterns

Longwave oscillatory Marangoni convection in a planar binary liquid layer is studied. Finite-amplitude regimes with perturbations of temperature and solute concentration of order unity are considered. Both thermocapillary and solutocapillary effects are taken into account. Oneand two-dimensional patterns on a rhombic lattice are studied and their stability to the perturbations which do not nece...

Effect of interfacial heat transfer on the onset of oscillatory convection in liquid bridge