Dynamic Characteristics of Cavitation in Single Hydrofoils and a Turbopump Inducer

• Project/Area Number: 26420112
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Osaka University
• Principal Investigator: Horiguchi Hironori 大阪大学, 基礎工学研究科, 准教授 (60314837)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: インデューサ / キャビテーション / 動特性 / 単独翼 / 翼面キャビテーション / 平板翼

Outline of Final Research Achievements

Dynamic characteristics of blade surface cavitation in single hydrofoils was examined mainly in experiment to clarify dynamic characteristics of cavitation in turbopump inducers for rocket engines. In cases of a flat plate, NACA0015, Clark-Y11.8% hydrofoils, the cavity responded to fluctuations of pressure and an angle of attack with almost no phase delay. In the order of a flat plate, NACA0015, Clark-Y11.8% hydrofoils, the size of the cavity was smaller. Therefore, the amount of fluctuation of the cavity volume was smaller in that order of hydrofoils. These outcomes were first findings in the world and have a large impact on the improvement of a reliability of high speed turbopumps such as inducers for rocket engines.

Research Products

• [Journal Article] Dynamic Response of Blade Surface Cavitation (2016)
  • Author(s): Masakazu Toyoshima, Kimiya Sakaguchi, Kota Tsubouchi, Hironori Horiguchi, Kazuyasu Sugiyama
  • Journal Title: International Journal of Fluid Machinery and Systems Volume: 9 Issue: 2 Pages: 160-168
  • DOI: 10.5293/IJFMS.2016.9.2.160
  • NAID: 130005156807
  • ISSN: 1882-9554
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 単独翼に生じる翼面キャビテーションの動特性 (2016)
  • Author(s): 豊島正和，堀口祐憲，杉山和靖
  • Organizer: キャビテーションに関するシンポジウム（第18回）
  • Place of Presentation: 九州大学（福岡県・福岡市）
  • Year and Date: 2016-12-08
• [Presentation] ケーシングトリートメントによるインデューサのキャビテーション不安定の抑制 (2016)
  • Author(s): 堀口祐憲，坪内孝太，沼直樹，豊島正和，杉山和靖
  • Organizer: 日本機械学会 第９４期 流体工学部門講演会
  • Place of Presentation: 山口大学（山口県・宇部市）
  • Year and Date: 2016-11-12
• [Presentation] ケーシングトリートメントによるインデューサのキャビテーション不安定現象の抑制とそのメカニズム (2016)
  • Author(s): 沼直樹，坪内孝太，豊島正和，堀口祐憲，杉山和靖
  • Organizer: 日本機械学会 関西支部 関西学生会卒業研究発表講演会
  • Place of Presentation: 大阪電気通信大学（大阪府寝屋川市）
  • Year and Date: 2016-03-10
• [Presentation] Dynamic Response of Blade Surface Cavitation (2015)
  • Author(s): Masakazu Toyoshima, Kimiya Sakaguchi, Kota Tsubouchi, Hironori Horiguchi, Kazuyasu Sugiyama
  • Organizer: The 13th Asian International Conference on Fluid Machinery
  • Place of Presentation: 早稲田大学（東京都新宿区）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Suppression of Cavitation Instabilities in an Inducer by Circumferential Groove with Swirl Breaker (2015)
  • Author(s): Kota Tsubouchi, Kimiya Sakaguchi, Masakazu Toyoshima, Hironori Horiguchi, Kazuyasu Sugiyama
  • Organizer: The 13th Asian International Conference on Fluid Machinery
  • Place of Presentation: 早稲田大学（東京都新宿区）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] 平板翼に生じるキャビテーションの動特性の計測 (2015)
  • Author(s): 豊島正和、阪口季望矢、坪内孝太、堀口祐憲、杉山和靖
  • Organizer: 日本機械学会関西支部 平成26年度関西学生会学生員卒業研究発表講演会
  • Place of Presentation: 京都大学桂キャンパス
  • Year and Date: 2015-03-14
• [Presentation] 平板翼に生じるキャビテーションの動特性に関する研究 (2014)
  • Author(s): 阪口季望矢、坪内孝太、芦田拓也、堀口祐憲、杉山和靖
  • Organizer: キャビテーションに関するシンポジウム（第17回）
  • Place of Presentation: 東京大学生産技術研究所
  • Year and Date: 2014-11-20 – 2014-11-21