高圧・高温空気中における燃料液滴の蒸発とその飛跡

Material type: 文書・図像類

Author: 相波, 哲朗ほか

Publisher: 航空宇宙技術研究所

Publication date: 1978-10

Material Format: Digital

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Note (General)：: In a pressure atomizer-type combustor of gas turbines, numerous factors in the fuel spray have influence on the combustion performance and on the poll...

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Material Type: 文書・図像類
Title: 高圧・高温空気中における燃料液滴の蒸発とその飛跡
Author/Editor: 相波, 哲朗
鈴木, 邦男
AIBA, Tetsuro
SUZUKI, Kunio
Author Heading: 相波, 哲朗
鈴木, 邦男
AIBA, Tetsuro
SUZUKI, Kunio
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1978-10
Publication Date (W3CDTF): 1978-10
Alternative Title: An Estimation of Evaporation Rate and Trajectory of a Fuel Droplet in High-Pressure, High-Temperature Atmosphere
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-548
No. or year of volume/issue: 548
Volume: 548
Pages: 21-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): In a pressure atomizer-type combustor of gas turbines, numerous factors in the fuel spray have influence on the combustion performance and on the pollutants emission. Factors such as evaporation rates and trajectories of fuel droplets are very complicated to analyze as a cluster, therefore, the authors have performed simplified calculation in the case of single droplet under high-pressure, high-temperature conditions. The remarkable results are as follows: 1.Equilibrium temperature of a droplet increases with the increasing temperature of the ambient air and the period to attain the equilibrium temperature decreases with the same condition. 2.Evaporation period of a droplet increases with the increasing pressure at 573K of the ambient temperature. But the pressure effect on the evaporation period is inverted above 673K. 3.Heating period occupies a considerable part of the total life-time. 4.Relative velocity of droplet and air-stream decreases rapidly and the penetration distance becomes shorter at high pressure condition. It is mainly due to density of the ambient air. 5.Assuming that the initial diameter of droplet is 100μm, almost all of penetration distance of the droplet is in the heating period. 6.Effect of ambient temperature on the trajectory is small at atmospheric pressure, but is considerable at high pressure condition. 7.Influence of the swirler air-stream on the droplet velocity becomes large for a slow droplet. In this case the droplet is accelerated by the air stream.
資料番号: NALTR0548000
レポート番号: NAL TR-548
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ