Method for Determining Nozzle-Throat-Erosion History in Hybrid Rockets and Elucidation of the Mechanism

• Project/Area Number: 15H04197
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Aerospace engineering
• Research Institution: Hokkaido University
• Principal Investigator: Nagata Harunori 北海道大学, 工学研究院, 教授 (40281787)
• Co-Investigator(Kenkyū-buntansha): 戸谷 剛 北海道大学, 工学研究院, 准教授 (00301937) ; 脇田 督司 北海道大学, 工学研究院, 助教 (80451441)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000); Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2016: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
• Keywords: ハイブリッドロケット / ノズル浸食 / 再現法 / 固体燃焼 / 宇宙輸送 / 推進・エンジン / ロケット / ロケットノズル / ノズル侵食 / 航空宇宙工学 / 燃焼 / ノズルエロージョン

Outline of Final Research Achievements

We developed a new reconstruction technique titled nozzle-throat reconstruction technique to estimate nozzle-throat-erosion history and oxidizer-to-fuel-mass-ratio history in hybrid rockets. Static-firing tests were carried out on a 2kN-class hybrid-rocket motor under varying oxidizer-flowrates to evaluate the accuracy of reconstructed results. For equivalence ratios from 0.6 to 1.4, the relationship between nozzle-throat-erosion rate and equivalence ratio of reconstructed results displays a trend consistent with chemical-kinetic-limited heterogeneous-combustion theory, as well as predictions made by previous researchers. Also, we selected some materials which can prevent nozzle erosion and evaluated anti-erosion characteristics by combustion experiments. As an experimental result, graphite coated by silicon carbide showed good anti-erosion characteristics for hybrid rocket nozzles.

Research Products

• [Journal Article] Method for Determining Nozzle-Throat-Erosion History in Hybrid Rockets (2017)
  • Author(s): Kamps, L., Saito, Y., Kawabata, R., Wakita, M., Totani, T., Takahashi, Y., and Nagata, H
  • Journal Title: Journal of Propulsion and Power Volume: 33 Issue: 6 Pages: 1369-1377
  • DOI: 10.2514/1.b36390
  • NAID: 120006366503
  • Peer Reviewed / Open Access
• [Journal Article] Method for Determining Nozzle Throat Erosion History in Hybrid Rockets (2017)
  • Author(s): L. T. Kamps, Y. Saito, R. Kawabata, Y. Takahashi, H. Nagata
  • Journal Title: Journal of Propulsion and Power Volume: 33 Issue: 3 Pages: 281-296
  • DOI: 10.12989/aas.2017.4.3.281
  • NAID: 120006366503
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Estimation of Hybrid Rocket Nozzle Throat Erosion History (2016)
  • Author(s): Yuji SAITO, Tsutomu UEMATSU, Hikaru ISOCHI, Masashi WAKITA, Tsuyoshi TOTANI, Harunori NAGATA
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Volume: 14 Issue: ists30 Pages: Pa_145-Pa_151
  • DOI: 10.2322/tastj.14.Pa_145
  • NAID: 130005331202
  • ISSN: 1884-0485
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Numerical and Experimental Investigation of Nozzle Thermochemical Erosion in Hybrid Rockets (2017)
  • Author(s): Bianchi, D., Kamps, L.T., Nasuti, F., and Nagata, H.
  • Organizer: 53rd AIAA/SAE/ASEE Joint Propulsion Conference, AIAA Propulsion and Energy Forum
  • Int'l Joint Research
• [Presentation] Investigation of Graphite Nozzle-Throat-Erosion in a Laboratory-Scale Hybrid Rocket Using GOX and HDPE (2017)
  • Author(s): Kamps, L.T., Hirai, S., Ahmimache, Y., Guan, R., and Nagata, H.
  • Organizer: 53rd AIAA/SAE/ASEE Joint Propulsion Conference, AIAA Propulsion and Energy Forum
  • Int'l Joint Research
• [Presentation] ハイブリッドロケットにおけるノズルスロートエロージョン抑制材料に関する研究 (2016)
  • Author(s): 山口亮、川端良輔、平井翔大、ケンプス ランドン、脇田督司、戸谷 剛、永田晴紀
  • Organizer: 日本機械学会 2016年度年次大会
  • Place of Presentation: 九州大学伊都キャンパス（福岡市）
  • Year and Date: 2016-09-11
• [Presentation] ハイブリッドロケットにおけるノズルスロート浸食履歴取得方法の精度と適用性に関する研究 (2016)
  • Author(s): ケンプス ランドン、齋藤勇士、平井翔太、永田晴紀
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館アリーナ（函館市）
  • Year and Date: 2016-09-06
• [Presentation] Method for Determining Nozzle Throat Erosion History in Hybrid Rockets (2016)
  • Author(s): Landon T. Kamps, Yuji Saito, Ryosuke Kawabata, Yusuke Takahashi, Harunori Nagata
  • Organizer: 52nd AIAA/SAE/ASEE Joint Propulsion Conference, Propulsion and Energy Forum
  • Place of Presentation: Salt Palace (Salt Lake City, UT, USA)
  • Year and Date: 2016-07-25
  • Int'l Joint Research
• [Presentation] ハイブリッドロケットにおけるノズルスロート浸食 履歴の取得方法 (2016)
  • Author(s): ケンプス ランドン、齋藤勇士、永田晴紀
  • Organizer: 日本航空宇宙学会北部支部2016年講演会ならびに 第17回再使用型宇宙推進系シンポジウムプログラム
  • Place of Presentation: 北海道大学
  • Year and Date: 2016-03-09
  • Int'l Joint Research
• [Presentation] ハイブリッドロケットのノズル侵食履歴およびノズルスロート温度履歴の取得 (2015)
  • Author(s): 永田晴紀、川端良輔、遠藤 瞳、金井竜一郎、平井翔大、脇田督司、戸谷 剛、五十地 輝
  • Organizer: 第53回燃焼シンポジウム
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2015-11-17
• [Presentation] Nozzle Erosion Progress in Hybrid Rocket Firings (2015)
  • Author(s): Ryosuke Kawabata, Yuji Saito, Shota Hirai, Barnier Camille, Masashi Wakita, Tsuyoshi Totani, Harunori Nagata,
  • Organizer: Twelfth International Conference on Flow Dynamics
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2015-10-28
  • Int'l Joint Research
• [Presentation] ハイブリッドロケットにおけるノズルスロートエロージョンに関する 研究 (2015)
  • Author(s): 川端良輔, 齋藤勇士, 平井翔大, 脇田督司, 戸谷剛, 永田晴紀
  • Organizer: 第59回 宇宙科学技術連合講演会
  • Place of Presentation: かごしま県民交流センター
  • Year and Date: 2015-10-07
• [Presentation] Estimation of Hybrid Rocket Nozzle Throat Erosion History (2015)
  • Author(s): Yuji SAITO, Tsutomu UEMATSU, Hikaru ISOCHI, Masashi WAKITA, Tsuyoshi TOTANI Harunori NAGATA
  • Organizer: 30th International Symposium on Space Technology and Science
  • Place of Presentation: Tokyo
  • Year and Date: 2015-07-10
  • Int'l Joint Research