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Postprint
DOI: 10.5445/IR/1000087756
Frei zugänglich ab 16.08.2019

Numerical investigation of vapor bubble growth in a rectangular microchannel

Stroh, Alexander; Frohnapfel, Bettina; Dittmeyer, Roland

Abstract:
A numerical simulation of a rectangular microchannel with partially superheated wall area is carried out in order to gain better understanding of the physical mechanism behind boiling in such confined geometries. Variation of the initial bubble position and boundary conditions for temperature and velocity fields is performed to extract the distinct influence on the vapor bubble growth. A significant difference in the motion and growth of the vapor bubble is observed depending on the operating conditions.


Zugehörige Institution(en) am KIT Institut für Mikroverfahrenstechnik (IMVT)
Institut für Strömungsmechanik (ISTM)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator URN: urn:nbn:de:swb:90-877566
KITopen-ID: 1000087756
HGF-Programm 34.12.01 (POF III, LK 01)
Erschienen in 16th International Heat Transfer Conference (IHTC16), Beijing, CHN, August 10-15, 2018
Schlagworte microchannels, evaporation, vapor bubble growth
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