Item type |
itemtype_ver1(1) |
公開日 |
2023-09-13 |
タイトル |
|
|
タイトル |
Investigation of Transition Phenomenon from Rotating Cavitation to Attached Asymmetric Cavitation by Coupled Analysis of One-Dimensional Flow Path Model of 3-Blade Inducer and Shaft Vibration System |
|
言語 |
en |
著者 |
Inoue, Tsuyoshi
Ohama, Hirohisa
Imaeda, Yuki
Kawasaki, Satoshi
Shimura, Takashi
Shimagaki, Mitsuru
Uchiumi, Masaharu
|
アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利 |
|
|
言語 |
en |
|
権利情報 |
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s42417-023-00911-x |
内容記述 |
|
|
内容記述 |
Purpose: During the development process of the turbopump for a rocket engine, various problems of shaft vibration have been reported. Among them, vibration problems caused by dynamic fluid flow phenomena in the inducer, such as rotation cavitation (RC) and attached asymmetric cavitation (AAC), are known to be major factors that impair the stability of the system. The transition from RC to AAC was observed experimentally, however, there has been no analytical investigation of this transition phenomenon. The Purpose of this study is explaining the transition from RC to AAC in the inducer. Methods: The fluid flow phenomena in the inducer was modeled using a one-dimensional flow-path model of the inducer. The representation of pump dynamic characteristic coefficients (cavitation compliance and mass flow gain factor) in each flow path was proposed and investigated. Furthermore, a coupled analysis of the rotor and fluid systems was performed to investigate this transition from RC to AAC in the inducer. Results: The occurrence of this transition from RC to AAC in the inducer was observed and explained. It was evaluated by comparison with the experimental results. Conclusions: The key factor of transition from RC to AAC in the inducer was the signs of the pump dynamic characteristic coefficients (both cavitation compliance and mass flow gain factor). Transition occurred when both were set as negative. The results of the coupled analysis were qualitatively in good agreement with the experimental results obtained from the water tunnel test. |
|
言語 |
en |
|
内容記述タイプ |
Abstract |
内容記述 |
|
|
内容記述 |
Online Published: 06 March 2023 |
|
言語 |
en |
|
内容記述タイプ |
Other |
出版者 |
|
|
言語 |
en |
|
出版者 |
Springer |
言語 |
|
|
言語 |
eng |
資源タイプ |
|
|
資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1007/s42417-023-00911-x |
収録物識別子 |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
2523-3920 |
書誌情報 |
en : Journal of Vibration Engineering & Technologies
巻 12,
p. 1323-1339,
発行日 2024-02
|
ファイル公開日 |
|
|
日付 |
2024-03-06 |
|
日付タイプ |
Available |