NDLI: Experimental and Numerical Investigation of the Dynamics of Moving Vapor Bubbles

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	David, M. Christopher Wang, Hao Peng, Xiaofeng
Copyright Year	2005
Abstract	Jet flows have been observed flowing from the tops of vapor bubbles during nucleate boiling in a variety of situations. This paper analyzes the physical mechanisms that cause jet flows to emanate from the tops of bubbles moving along microwires. The flows were analyzed by numerically solving the governing differential equations for the 3-D velocity and temperature distributions around the bubble and the heated wire as the bubble moves along the wire. The results show that the flow is most likely driven by the temperature difference from the front to the back of the bubble resulting from the bubble motion which would cause Marangoni flow. The Marangoni flow provides thrust to push the bubble forward. Comparisons with experimental observations suggests that the condensation heat transfer at the bubble interface must be restricted by noncondensable gases would increase the surface temperature gradient which would in turn increase the resulting Marangoni flow.
Sponsorship	Heat Transfer Division and Electronic and Photonic Packaging Division
Starting Page	119
Ending Page	125
Page Count	7
File Format	PDF
ISBN	0791847322
DOI	10.1115/HT2005-72415
e-ISBN	0791837629
Volume Number	Heat Transfer: Volume 2
Conference Proceedings	ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
Language	English
Publisher Date	2005-07-17
Publisher Place	San Francisco, California, USA
Access Restriction	Subscribed
Subject Keyword	Subcooled nucleate boiling Cfd Jet flows Marangoni flow Temperature distribution Temperature Computational fluid dynamics Vapors Wire Flow (dynamics) Condensation Temperature gradient Gases Bubbles Subcooling Dynamics (mechanics) Differential equations Nucleate boiling Heat transfer Thrust
Content Type	Text
Resource Type	Article

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Microscale Vapor Bubble Interactions During Subcooled Nucleate Boiling on a Heated Wire

Subcooled Flow Boiling in a Minichannel

Numerical Modeling of Multiple Bubbles Condensation in Subcooled Flow Boiling

Flow Morphology and Heat Transfer During Subcooled Flow Nucleate Boiling of HFE-7000 in Microchannels

CFD Analysis on Wall Boiling Model During Subcooled Boiling in Vertical Narrow Rectangular Channel

Microbubble Formation in Abrupt Condensation of Vapor Bubble Exposed to Subcooled Pool

Experimental Investigation of Nucleate Boiling on Capillary Tubes Under PWR Specific Subcooling and Flow Parameters

The Characteristics of Steam Bubbles in Subcooled Boiling Flow

Vapor Bubble Condensation Characteristics of Subcooled Flow Boiling in Vertical Rectangular Channel

Experimental and Numerical Investigation of the Dynamics of Moving Vapor Bubbles

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