DSpace university logo mark
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > 060 工学部・工学研究科 > 060 学術雑誌論文 >


ファイル 記述 サイズフォーマット
kikaiB53_3449.pdf261.4 kBAdobe PDF本文ファイル

タイトル: LDVによる直接噴射式ディーゼル機関筒内流動の研究
その他のタイトル: Study on In-Cylinder Flow of Direct Injection Diesel Engine by LDV Measurement
著者: 植木, 弘信 / 石田, 正弘 / 片岡, 洋一 / 吉村, 長孫
著者(別表記) : Ueki, Hironobu / Ishida, Masahiro / Kataoka, Yoichi / Yoshimura, Yoshihiro
発行日: 1987年11月25日
出版者: 日本機械学会
引用: 日本機械学會論文集. B編 53(495) p.3449-3453, 1987
抄録: Swirl, turbulence and the cyclic fluctuation have been examined using LDV in a motored direct injection diesel engine with a spiral port, a troidal piston cavity and a bore of 102 mm. Measurements were made at a low engine speed of 600 rpm at nine points along a cylinder diameter. The authors have developed a new method to analyze turbulence accurately even under the low data rate condition by introducing a concept of confidence interval. It has been clearly shown that there exists a longitudinal vortex in the piston cavity, the tangential velocity distribution shows a forced vortex pattern, and the swirl ratio increases rapidly in the piston cavity. And turbulence in a compression stroke was not always uniform in the cylinder, but in-cylinder averaged turbulence and the cyclic fluctuation were almost the same between the tangential and axial components.
キーワード: Internai Combustion Engine / Direct Injection Diesel Engine / Swirl / Turbulence / Flow Measurement / LDV
URI: http://hdl.handle.net/10069/6730
ISSN: 03875016
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:060 学術雑誌論文

引用URI : http://hdl.handle.net/10069/6730



Valid XHTML 1.0! Copyright © 2006-2015 長崎大学附属図書館 - お問い合わせ Powerd by DSpace