Thermal migration of bubbles toward a fluid interface

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:484981

Esmaeeli, A; Tryggvason, G; Arpaci, V ^[1]

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1. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Mechanical Engineering and Applied Mechanics

Thermocapillary migration of two-dimensional, deformable bubbles toward a free surface is investigated. The Navier-Stokes equations and the thermal energy equation are solved for the fluids inside and outside the bubbles using a front tracking/finite difference method. The boundaries of the domain are taken to be periodic in the horizontal direction and wall-bounded in the vertical direction. The temperatures of the walls are fixed such that an upward temperature gradient is imposed. The effects of the governing parameters on the motion and the bursting of the bubbles are discussed and the evolution of the phase distribution and the Reynolds stresses are investigated.

• OSTI ID: 484981
• Report Number(s): CONF-960815--
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BUBBLES
HEAT TRANSFER
MASS TRANSFER
MATHEMATICAL MODELS
TEMPERATURE GRADIENTS
THEORETICAL DATA
TWO-PHASE FLOW