Brunel University Research Archive (BURA) >
University >
The Brunel Collection >

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/6888

Title: Numerical simulation of bubbles deformation, flow and coalescence in a microchannel under pseudo-nucleation conditions
Authors: Yan, Y
Zu, Y
2nd Micro and Nano Flows Conference (MNF2009)
Keywords: Nucleate boiling
Pseudo/quasi nucleation
Microchannel
CFD
Bubble
Deformation
Coalesce
Publication Date: 2009
Publisher: Brunel University
Citation: 2nd Micro and Nano Flows Conference, Brunel University, West London, UK, 01-02 September 2009
Abstract: The paper reports results of numerical study on bubbles deformation, flow and coalescence under pseudo nucleate boiling conditions in horizontal mini-/micro- channels. The numerical simulation, which is based on the multiphase model of volume of fluid (VOF) method, aims to study the corresponding flow behaviours of nucleate bubbles generated from the tube walls in mini/micro channels so as to understand the effect of confined surfaces/walls on nucleate bubbles and heat transfer. Under the pseudo or quasi nucleate boiling condition, small superheated vapour bubbles are injected at the wall to ensure that the bubbles generation is under a similar condition of real nucleation. The numerical study examined the fluid mechanics of bubble motion with heat transfer, but the mass transfer across the bubble-liquid interface is not simulated in the present work.
Description: This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the Italian Union of Thermofluid dynamics, the Process Intensification Network, HEXAG - the Heat Exchange Action Group and the Institute of Mathematics and its Applications.
Sponsorship: This work is supported by the UK EPSRC under grant EP/D500125/01.
URI: http://bura.brunel.ac.uk/handle/2438/6888
ISBN: 978-1-902316-72-7
978-1-902316-73-4
Appears in Collections:Brunel Institute for Bioengineering (BIB)
The Brunel Collection

Files in This Item:

File Description SizeFormat
MNF2009.pdf831.63 kBAdobe PDFView/Open

Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.