Transient buoyancy-thermocapillary convection in two superposed immiscible liquid layers

Journal Article · Tue Oct 01 04:00:00 EDT 1996 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789608913852· OSTI ID:417944

Wang, P; Kahawita, R ^[1]

---

1. Ecole Polytechnique de Montreal, Quebec (Canada). Dept. of Civil Engineering

The transient buoyancy, thermocapillary, and buoyancy-thermocapillary convection in two superposed immiscible liquid layers in a finite cavity with side heating has been studied in the laminar regime by solving the complete two-dimensional Navier-Stokes and energy equations using the spline integration method. The development of the flow and temperature field as well as the velocity, interface vorticity, and heat transfer in both layers has been evaluated. Oscillatory behavior has been observed at high Rayleigh numbers and Marangoni numbers for moderate Prandtl numbers. the behavior of the heat transfer between the two layers through the interface separating them has been found to be particularly interesting, with large heat transfer rates occurring across the interface near the end walls at high Rayleigh numbers.

• OSTI ID: 417944
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 5 Vol. 30; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CAPILLARY FLOW
CAVITIES
CONVECTION
GASES
INTERFACES
LIQUIDS