Fuel Regression Characteristics of CAMUI-type hybrid rockets under high Reynolds numbers

2015 Fiscal Year Final Research Report

• Project/Area Number: 24246135
• Research Category: Grant-in-Aid for Scientific Research (A)
• 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(系)研究科(研究院), 教授 (40281787)
• Co-Investigator(Kenkyū-buntansha): OSHIMA NOBUYUKI 北海道大学, 大学院工学研究院, 教授 (10217135) ; TOTANI TSUYOSHI 北海道大学, 大学院工学研究院, 准教授 (00301937) ; WAKITA MASASHI 北海道大学, 大学院工学研究院, 助教 (80451441)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: ハイブリッドロケット / スケール効果 / ロケット / 固体燃焼 / 燃焼 / 航空宇宙工学

Outline of Final Research Achievements

To achieve the practical use of nonhazardous small rockets, We have developed CAMUI type hybrid rockets. CAMUI rockets are free from explosives and liquid fuels, resulting in lower costs for safety management. This research clarifies scale effects on fuel regression characteristics mainly by static firing tests. The firing tests covers Reynolds number range from a few thousands to over a half million. A numerical simulation clarified the mechanism responsible for the effect. By using these results, we can obtain basic design data by static firing tests of a subscale motor. Finally, we developed a 15 kN thrust class motor. Firing tests by this motor show good results, verifying the method developed in this research.

Free Research Field

宇宙推進工学