Thermocapillarity-induced vortexes and liquid film dynamics on structured heated walls
-
Yulia O. Kabova
Abstract
Thermocapillarity-induced flow and evolution of thin liquid films on horizontal structured heated walls are studied theoretically and numerically. The steady deformation of the liquid–gas interface and the vortex flow pattern within the film are predicted for the steady continuous films in the case of grooved walls. The effect of the thickness of the gas layer above the film on the film deformation is quantified. A linear stability analysis of the film is performed. The dynamics of film evolution toward rupture is simulated numerically in the framework of the long-wave theory. The effect of the wall topography on the rupture time and on the film topology at the moment just before rupture is studied. The long-wave model is verified by comparison with full-scale numerical simulations using the volume of fluid method.
Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Editorial
- Linear Marangoni and Rayleigh-Taylor instabilities of a ferrofluid thick layer in a vertical magnetic field
- Free surface shear flows induced by Marangoni and alternating electromagnetic forces
- Instability of two-phase mixing layers: analysis of exact and approximate base flows from boundary layer theory
- Thermocapillarity-induced vortexes and liquid film dynamics on structured heated walls
- Numerical strategies for the simulation of dissolution kinetics and fluid-dynamic instabilities in liquid couples with a miscibility gap
- A study of heat transfer in liquid bridges near onset of instability
- Experimental and numerical study of the Marangoni convection due to localized laser heating
- Oscillatory instability of Rayleigh-Marangoni-Bénard convection in two-layer liquid system
Articles in the same Issue
- Editorial
- Linear Marangoni and Rayleigh-Taylor instabilities of a ferrofluid thick layer in a vertical magnetic field
- Free surface shear flows induced by Marangoni and alternating electromagnetic forces
- Instability of two-phase mixing layers: analysis of exact and approximate base flows from boundary layer theory
- Thermocapillarity-induced vortexes and liquid film dynamics on structured heated walls
- Numerical strategies for the simulation of dissolution kinetics and fluid-dynamic instabilities in liquid couples with a miscibility gap
- A study of heat transfer in liquid bridges near onset of instability
- Experimental and numerical study of the Marangoni convection due to localized laser heating
- Oscillatory instability of Rayleigh-Marangoni-Bénard convection in two-layer liquid system
