On the effect of outflow boundary truncation for numerical simulation of narrow-channel flames

Kang, X., Gollan, R. J., Jacobs, P. A. and Veeraragavan, A . (2016). On the effect of outflow boundary truncation for numerical simulation of narrow-channel flames. In: 20th Australasian Fluid Mechanics Conference. 20th Australasian Fluid Mechanics Conference, Perth, Australia, (). 5 – 8 December 2016.

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Name Description MIMEType Size Downloads
Author Kang, X.
Gollan, R. J.
Jacobs, P. A.
Veeraragavan, A .
Title of paper On the effect of outflow boundary truncation for numerical simulation of narrow-channel flames
Conference name 20th Australasian Fluid Mechanics Conference
Conference location Perth, Australia
Conference dates 5 – 8 December 2016
Convener Australasian Fluid Mechanics Society
Proceedings title 20th Australasian Fluid Mechanics Conference
Place of Publication Perth, Australia
Publisher Australasian Fluid Mechanics Society
Publication Year 2016
Sub-type Fully published paper
Open Access Status Not Open Access
Total pages 4
Language eng
Abstract/Summary Premixed methane/air flame propagation in a two-dimensional, planar micro-channel is modelled by solving the transient, full Navier–Stokes equations with the reaction mechanism DRM- 19 using our in-house code (Eilmer). Effects of two different outflow boundary treatments, i.e. applying an outflow boundary truncation and using a domain-extension joining the combustor outlet are investigated, for both steady-state flames and periodically oscillating flames. It is found that the use of a domain truncation/extension mainly influences the acoustic wave damping time at the initial stage when the flame is initiated. For the steady-state flame case, there is no noticeable difference in final solutions between two outflow treatments. For the spatially oscillating flames, the characteristics in terms of the oscillation frequency and amplitude are slightly but not significantly affected when the flame settles into a consistent oscillatory pattern.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Link to paper: https://www.dropbox.com/sh/xstmubplg7owosu/AAD62Pm35VGjh9dD92t_4-c7a/PDFs?dl=0&preview=706+Paper.pdf Conference Website: http://www.afms.org.au/20AFMC/index.html Conference Program/Schedule: http://www.afms.org.au/20AFMC/documents/20AFMC_ProgramFINAL.pdf

Document type: Conference Paper
Collections: School of Mechanical & Mining Engineering Publications
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Created: Thu, 02 Feb 2017, 13:56:02 EST by Clare Nelson on behalf of School of Mechanical and Mining Engineering