Study on turbulent burning velocity of outwardly propagating hydrogen-air flames with turbulence Karlovitz number

Toshiaki Kitagawa, Takashi Nakahara, Kunihiro Kado, Tomohiro Takeo

研究成果: Contribution to journalArticle査読

抄録

Outwardly propagating hydrogen-air turbulent flames were studied at the equivalence ratios from 0.6 to 1.0 and the initial pressures from 0.10 to 0.50 MPa. Turbulence intensity, u' was set to 0.80 to 1.59 m/s. The Markstein number decreased for increasing pressures and for small equivalence ratios. The ratios of turbulent to unstretched laminar burning velocities at a constant Peclet number increased with increasing turbulence Karlovitz number and decreasing Markstein number at a constant pressure. This ratio of burning velocities increased with increasing pressure at the equivalence ratios of 0.6 and 0.8. At the equivalence ratio of 1.0, however, it did not increase with increasing pressure although the Markstein number reduced with pressure.

本文言語英語
ページ(範囲)1426-1432
ページ数7
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
76
769
DOI
出版ステータス出版済み - 9 2010

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 機械工学

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