Transient analysis of thermocapillary convection in a cavity
Abstract
A finite-volume based computational model is developed to predict the evolution of thermocapillary convection in a cavity with a curved and deforming free surface. The two-dimensional transient incompressible continuity, momentum, and energy equations are solved on a staggered nonuniform Cartesian grid. Normal and tangential boundary conditions at the free surface are modeled using a surface pressure and a continuum surface force technique respectively. The free surface location is computed using the volume-of-fluid transport equation. The new transient model is then used to study the influence of Marangoni number on the evolution of thermocapillary flows for different static contact angles in a cavity.
- Publication:
-
31st AIAA Aerospace Sciences Meeting and Exhibit
- Pub Date:
- January 1993
- Bibcode:
- 1993aiaa.meetTQ...S
- Keywords:
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- Capillary Flow;
- Cavity Flow;
- Computational Fluid Dynamics;
- Finite Volume Method;
- Marangoni Convection;
- Boundary Conditions;
- Cartesian Coordinates;
- Computational Grids;
- Interfacial Tension;
- Temperature Gradients;
- Fluid Mechanics and Heat Transfer