Phase-field modeling of vapor bubble growth in a microchannel

R. Jafari, T. Okutucu-Özyurt*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

A numerical model based on Cahn-Hilliard phase-field method is introduced for the first time in the literature to investigate the hydrodynamics and heat transfer characteristics of a vaporized elongated bubble in a rectangular microchannel. In the simulations, the initially nucleated bubble starts growing as it comes in contact with superheated water. The effects of the water inlet velocity and the bubble contact angle on the temporal evolution of the average heat transfer coefficient are also reported. Both qualitative and quantitative comparisons indicated that the numerically obtained bubble shape and the growth rate are in very good agreement with the experimental results available in the literature.

Original languageEnglish
Pages (from-to)143-158
Number of pages16
JournalJournal of Computational Multiphase Flows
Volume7
Issue number3
DOIs
Publication statusPublished - Sept 2015
Externally publishedYes

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