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http://dx.doi.org/10.6108/KSPE.2020.24.3.047

Internal Ballistics Analysis and Experimental Validation of Thrust Modulation for Hybrid Rocket Using Self-Pressurizing Nitrous Oxide  

Han, Seongjoo (Center for Reliability Engineering in Mechanical and Aerospace Industry, Korea Aerospace University)
Moon, Heejang (School of Mechanical and Aerospace Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.24, no.3, 2020 , pp. 47-58 More about this Journal
Abstract
In this study, a thrust modulation through oxidizer mass flow rate control and internal ballistic analysis based on Whitmore and Chandlers' models was conducted on a blow-down hybrid rocket using nitrous oxide. The tank pressure prediction considering mass flow rate control of the self-pressuring oxidizer was conducted, and the results showed good agreements with experimental results. In order to verify the internal ballistic analysis, a ground combustion test using a 500 N class hybrid rocket was conducted, and it was confirmed that the experimental results and the analytical results were quite consistent in the chamber pressure and thrust, thereby, a modeling technique capable of predicting the thrust modulation performance is proposed.
Keywords
Nitrous Oxide; Self-pressurizing; Hybrid Rocket; Thrust Modulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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