Asymmetric interface temperature during vapor bubble growth

Diana, Antoine, Castillo, Martin, Steinberg, Ted, & Brutin, David (2013) Asymmetric interface temperature during vapor bubble growth. Applied Physics Letters, 103(3), 031602.

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Abstract

We investigate the nucleation, growth, and detachment of single vapor bubbles at the interface microscale. Shear flow is used to investigate pool and convective boiling situations using visible and infrared visualizations. We determine a threshold Reynolds number for the onset of asymmetric interfacial temperatures. Below this threshold, bubble growth is geometrically and thermally symmetric, while above, bubbles no longer grow thermally symmetrically. This is explained by the dominance of convective heat transfer removal over viscous effects at the bubble interface. We experimentally demonstrate asymmetric interfacial temperature profiles that should be taken into account for future bubble growth modeling.

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ID Code: 77050
Item Type: Journal Article
Refereed: Yes
Keywords: boiling, bubble growth, vaporisation, temperature distribution
DOI: 10.1063/1.4813561
ISSN: 0003-6951
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 07 Oct 2014 07:02
Last Modified: 19 Apr 2017 02:20

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