Journal of Thermal Science and Technology
Online ISSN : 1880-5566
ISSN-L : 1880-5566
Papers
Flow Field of Turbulent Premixed Combustion in a Cyclone-Jet Combustor
Kazuhiro YAMAMOTOSatoshi INOUEHiroshi YAMASHITADaisuke SHIMOKURISatoru ISHIZUKA
著者情報
キーワード: Flame, Premixed Combustion, Turbulence, PIV, Jet
ジャーナル フリー

2007 年 2 巻 1 号 p. 90-101

詳細
抄録
The flow field in highly turbulent premixed combustion has been examined, using a cyclone-jet combustor. The shear-strain rate is obtained by PIV system. Results show that, in combustion field, mean axial velocity does not decay along center axis and RMS fluctuation velocity is much lower, compared with those in cold flow. The reaction zone detected by an ion probe well corresponds to region of large shear-strain rate. In combustion, turbulence is small around reaction zone to have the undiminished jet velocity, which leads to an increase in length of potential core, although the flame generated turbulence is observed through flow expansion.
著者関連情報
© 2007 by The Japan Society of Mechanical Engineers and The Heat Transfer Society of Japan
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