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Numerical Simulation of Flame Circumfluence of a Gas Burner(PDF)

南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年04期
Page:
24-28
Research Field:
Publishing date:

Info

Title:
Numerical Simulation of Flame Circumfluence of a Gas Burner
Author(s):
Zhang YiChen DandanShi SongLi JingTeng Yue
Scool of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China
Keywords:
gas burnerflame circumfluenceflame stabilitynumerical calculation
PACS:
TK17
DOI:
-
Abstract:
The flame flow field of a gas burner was investigated by numerical method. The flame circumfluence was analyzed with calculation results. The flow was simplified into two dimensional axisymmetric flow according to characters of gas burner structure. Numerical simulations were performed with different velocities of air and gas. Results showed that there were two circumfluences in flow area. One was at the centre of flow area,the other was between two jets of air. The higher the air speed was,the wider flame circumfluence was. And the circumfluence was nearer to outlet of the burner,even entered into the burner when air velocity got higher. The impact of gas velocity on the circumfluence was opposite to that of air velocity. When gas flowed at a relative high velocity,the circumfluence at the centre became obviously smaller and was farer away from the outlet. This study can provide guidance for choice of appropriate velocity of air and gas in gas burner.

References:

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Last Update: 2013-03-21