マリンエンジニアリング
Online ISSN : 1884-3778
Print ISSN : 1346-1427
ISSN-L : 1346-1427
論文
舶用ディーゼルノズルの噴霧特性と内部流れに関する研究
横部 澄人大澤 克幸小田 哲也住 隆博薮田 圭一郎菅田 秀平
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2016 年 51 巻 1 号 p. 110-116

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Spray characteristic and internal flow of a marine diesel nozzle were investigated both numerically and experimentally. In this paper, both investigations were carried out using water instead of fuel. Numerical simulation of nozzle internal flow of the nozzle showed that cavitation can occur inside the nozzle holes.

In spray visualization experiments, it was observed that penetrations of the sprays in the early stages of injection gradually increased due to an effect of large sac volume. This phenomenon is quite different from that of a small automobile diesel nozzle. Internal flow visualization was also carried out and the appearance of cavitation inside the nozzle holes was consistent with numerical simulation results.

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© 2016 公益社団法人 日本マリンエンジニアリング学会
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