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Performance Evaluation of Micro-nozzle Using Cold Gas Propulsion System  

Jung, Sung-Chul (충남대학교 대학원 항공우주공학과)
Kim, Youn-Ho (충남대학교 대학원 항공우주공학과)
Oh, Hwa-Young (한국항공우주연구원 우주센터 체계관리팀)
Myong, Rho-Shin (경상대학교 기계항공공학부)
Huh, Hwan-Il (충남대학교 항공우주선박해양공학부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.11, no.6, 2007 , pp. 42-49 More about this Journal
Abstract
In this study, we analyzed flow characteristics of micro-nozzles for basic research to develop micro propulsion system. Cold gas propulsion system was used, and micro-nozzles having nozzle throat diameters of 1.0, 0.5, 0.25 mm were fabricated with EDM method. Thrust was measured through the use of plate-spring and strain gage based thrust measurement system, and flow characteristics of micro-nozzles were analyzed under ambient condition and vacuum condition. We used argon and nitrogen gases as propellant, and compared experimental results with CFD analysis. From the result, we verified the flow losses of viscosity and back-pressure caused by minimization of nozzle.
Keywords
Micro-Satellite; Cold Gas Propulsion System; Micro-nozzle; Thrust Measurement System; Viscous Loss; Vacuum Condition;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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