加速ノズル内気泡流の数値解析

Material type: 文書・図像類

Author: 石井, 隆次ほか

Publisher: 航空宇宙技術研究所

Publication date: 1990-11

Material Format: Digital

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Note (General)：: Flow of bubbly liquid in divergent-convergent nozzle is investigated numerically. First a steady flow is obtained and then small pressure fluctuations...

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Material Type: 文書・図像類
Title: 加速ノズル内気泡流の数値解析
Author/Editor: 石井, 隆次
梅田, 吉邦
森岡, 茂樹
八田, 夏夫
Ishii, Ryuji
Umeda, Yoshikuni
Morioka, Shigeki
Hatta, Natsuo
Author Heading: 石井, 隆次
梅田, 吉邦
森岡, 茂樹
八田, 夏夫
Ishii, Ryuji
Umeda, Yoshikuni
Morioka, Shigeki
Hatta, Natsuo
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1990-11
Publication Date (W3CDTF): 1990-11
Alternative Title: Numerical Analysis of Bubbly Liquid in Convergent-Divergent Nozzle
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-14
No. or year of volume/issue: 14
Volume: 14
Pages: 147-152
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: jpn
Target Audience: 一般
Note (General): Flow of bubbly liquid in divergent-convergent nozzle is investigated numerically. First a steady flow is obtained and then small pressure fluctuations are imposed on the flow at the nozzle inlet. It is found that the voidage waves are induced by the applied pressure fluctuations. They propagate downstream through the nozzle with the same velocity as that of the bubbles. Theoretically, voidage waves are expected to be amplified and the flow becomes unstable in the throat region where the velocity slip between the liquid and the gas bubbles is present. Numerically, however, the unstable behavior of the voidage wave was not found at least in the present numerical simulations. This might come from the fact that the artificial viscosity involved in the numerical scheme tends to suppress the amplification of unstable waves.
資料番号: NALSP0014023
レポート番号: NAL SP-14
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43456&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43456&item_no=1&attribute_id=31&file_no=1
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