高速噴霧流と周囲流の流動特性 : 第1報, 定常噴霧流の場合

フォーマット:

論文

責任表示:

細谷, 肇 ; 小保方, 富夫

言語:

日本語

出版情報:

日本機械学会, 1992-04-25

著者名:

• 細谷, 肇
• 小保方, 富夫

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016      

巻:

58

通号:

548

開始ページ:

1252

終了ページ:

1258

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />Diesel fuel spray from a single-hole-type injection nozzle is investigated under steady and atmospheric conditions in order to understand the unsteady Diesel spray. Axial and radial velocity components of the spray at two constant injection pressures of 9.8MPa and 4.9MPa are measured by laser Doppler anemometer (LDA), and turbulence characteristics of the spray flow velocities are analyzed. Distributions of mean … velocity and turbulence characteristics in the spray flow are compared with gas jets and other spray flows. It is found that the injected spray is accelerated in the region close to the nozzle exit, and this phenomenon may be estimated as a kind of cavitation caused by expansion of dissolved gas in the fuel. The decrease in centerline velocity along the nozzle axis is very small and the air entrainment factor is also shown to take a smaller value than in previous experiments. 続きを見る