Suppression of Cavitation Instabilities in Inducer by Circumferential Groove

圆周槽抑制诱导轮空化不稳定性

• 批准号: 21360083
• 负责人: TSUJIMOTO Yoshinobu
• 金额: $ 11.73万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360083/
• 关键词: 流体機械; インデューサ; キャビテーション; ケーシングトリートメント; 周方向溝; 動特性; キャビテーションコンプライアンス; マスフローゲインファクタ; 逆流渦; 溝; グルーブ

A circumferential groove was adopted in the casing near the leading edge of the inducer to suppress cavitation instabilities in turbopump inducers for rocket engines. The circumferential groove could suppress the cavitation instabilities effectively. It was found that the cavitation instabilities with higher frequencies were generated by the interference of backflow vortex cavitation with the blades of the inducer. The dynamic characteristics of the inducer were estimated by computation and experiment.

在导流轮前缘附近的壳体中采用了圆周凹槽，以​​抑制火箭发动机涡轮泵导流轮的空化不稳定性。周向凹槽可以有效抑制空化不稳定性。研究发现，较高频率的空化不稳定性是由回流涡流空化对诱导轮叶片的干扰产生的。通过计算和实验估计了诱导轮的动态特性。

项目成果

Large Eddy Simulation of the Dynamic Response of an Inducer to Flow Rate Fluctuations

导流器对流量波动的动态响应的大涡模拟

• 发表时间: 2009
• 期刊: International Journal of Fluid Machinery and Systems Vol.2
• 作者: Kang;D.;Yonezawa;Y.;Ueda;T.;Yamanishi;N.;Kato;C.;Tsujimoto;Y.
• 通讯作者: Y.

Cause of Cavitation Instabilities in Three Dimensional Inducer

• DOI: 10.5293/ijfms.2009.2.3.206
• 发表时间: 2009-09
• 期刊: International Journal of Fluid Machinery and Systems
• 作者: D. Kang;K. Yonezawa;H. Horiguchi;Y. Kawata;Y. Tsujimoto

軸流ポンプ羽根車に生じる旋回チョークとチョークトサージ

轴流泵叶轮中出现的旋流阻流和阻流喘振

• 发表时间: 2009
• 期刊: ターボ機械 37巻
• 作者: 渡邊俊文;佐藤英吉;逸見恭彦;堀口祐憲;川田裕;辻本良信
• 通讯作者: 辻本良信

Suppression of Cavitation Instabilities in an Inducer by Circumferential Groove and Explanation of Higher Frequency Components

• DOI: 10.5293/ijfms.2010.3.2.137
• 发表时间: 2010-06
• 期刊: International Journal of Fluid Machinery and Systems
• 作者: D. Kang;Yusuke Arimoto;K. Yonezawa;H. Horiguchi;Y. Kawata;C. Hah;Y. Tsujimoto

Inducer Design to Avoid Cavitation Instabilities

• DOI: 10.5293/ijfms.2009.2.4.439
• 发表时间: 2009-12
• 期刊: International Journal of Fluid Machinery and Systems
• 作者: D. Kang;Toshifumi Watanabe;K. Yonezawa;H. Horiguchi;Y. Kawata;Y. Tsujimoto