Vapor Bubble Detachment in Subcooled Pool Boiling at Zero Gravity

The mechanism of vapor bubble detachment at zero gravity has been studied both analytically and numerically. Instead of analyzing the force balance, this study emphasizes momentum conservation, the time integral of the force. The liquid velocity is derived from the velocity potential. Heat and mass transfer across the interface are governed by a nonequilibrium model. The liquid temperature on the interface is regarded as a parameter. By introducing explicit forms for the velocity potential and the interface, the governing equations are transformed to a set of ordinary differential equations, which can be integrated numerically to find the motion of the bubble wall.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Nuclear Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Lin, Hsiao Chu

• Physics, Fluid and Plasma

Identifier

(UMI)AAI8324596

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/70888