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Proceedings ArticleDOI

Bubble behavior in microchannel with saturated and subcooled boiling

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TLDR
In this paper, simulated results on both subcooled boiling and saturated boiling in microchannel, where VOF was employed for vapor and liquid govern equations, and surface tension was considered on the function of bubbles since the Marangoni convection heat transfer is important on bubble behavior in the simulation scale.
Abstract
This paper displays some simulated results on both subcooled boiling and saturated boiling in microchannel, where VOF (volume-of-fluid) was employed for vapor and liquid govern equations, and surface tension was considered on the function of bubbles since the Marangoni convection heat transfer is important on bubble behavior in the simulation scale. According to simulated results, their flow patterns of two phase flow in micro channel were analyzed, their heat transfer performance related to bubbles behavior were discussed. Bubble behavior in boiling process leaded to visible difference on the whole heat transfer performance in the two phase flow in microchannels.

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Journal ArticleDOI

A continuum method for modeling surface tension

TL;DR: In this paper, a force density proportional to the surface curvature of constant color is defined at each point in the transition region; this force-density is normalized in such a way that the conventional description of surface tension on an interface is recovered when the ratio of local transition-reion thickness to local curvature radius approaches zero.
Book

Convective boiling and condensation

TL;DR: In this paper, the basic models of two-phase flow are discussed and empirical treatments of two phase flow are provided. But the authors focus on convective boiling and condensing.
Journal ArticleDOI

Correlations for the prediction of boiling heat transfer in small-diameter channels

TL;DR: In this paper, the authors describe aspects of the work relating to boiling in single, small-diameter tubes as part of a study of compact two-phase heat exchangers.
Journal ArticleDOI

Heat transfer model for evaporation in microchannels. Part I: presentation of the model

TL;DR: In this article, a three-zone flow boiling model was proposed to describe evaporation of elongated bubbles in microchannels, and a time-averaged local heat transfer coefficient was obtained.
Journal ArticleDOI

Boiling in microchannels: a review of experiment and theory

TL;DR: In this paper, a review of recent research on boiling in micro-channels is presented, which addresses the topics of macroscale versus micro-scale heat transfer, two-phase flow regimes, flow boiling heat transfer results for micro-channel, heat transfer mechanisms in microchannels and flow boiling models for micro channels.
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