LDV measurements of axial distributions of in-cylinder gas velocities

H. Kido, H. Tajima, A. Matsumoto

研究成果: ジャーナルへの寄稿学術誌査読

抄録

Characteristics of in-cylinder gas flow in a two-cycle uniflow type engine were investigated by using laser Doppler velocimeters (LDV). Through swirl velocity measurements at several sections along the cylinder axis, it was found that in the early compression stroke, axial distribution of angular momentum is uneven and swirl velocity at each measuring section fluctuates periodically. Mean angular momentum in the whole of the combustion chamber, however, decays monotonously and analysis showed that its decaying process after a late compression stoke is similar to the swirl-decaying process in a cylindrical constant-volume bomb. A secondary airflow in the upper part of the combustion chamber is inferred from the measured radial and axial velocities in an early compression stroke. (A)

本文言語英語
ページ(範囲)78-84
ページ数7
ジャーナルJSME INT. J. SERIES II
32
1 , Feb., 1989
DOI
出版ステータス出版済み - 1989
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 工学一般

フィンガープリント

「LDV measurements of axial distributions of in-cylinder gas velocities」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル