소형 고온 아크-제트 풍동 장비 구축 및 초기 성능 평가에 관한 연구A Study on the Configuration and Initial Performance Evaluation of Small-Scaled High-Temperature Arc-Jet Wind Tunnel Facility

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The present study built a small-scaled, high-temperature arc-jet wind tunnel facility (30 kW-class) for thermal protection system evaluation. Flow properties were measured and estimated to evaluate the facility’s performance. The constructed facility utilizes a Huels-type arc generator with a supersonic nozzle with an exit diameter of 28 mm. The facility’s performance evaluation was performed at the 1.03 g/s of supplied test gas’s mass flow rate and 85 A of input current. An arc column pressure, a pitot pressure, and a stagnation heat flux are measured using cylinder-shaped probes with a diameter of 10 mm, and they were 32.6 kPa, 4.39 kPa, and 1.99 MW/m2, respectively. Based on the measurements, the mass-averaged and centerline enthalpies were estimated as 3.22 MJ/kg and 10.9 MJ/kg, respectively, and the estimated static pressure, temperature, and Mach number at the nozzle exit were 250 Pa, 920 K, and 3.7, respectively. The estimated parameters were compared with large-scaled arc-jet wind tunnel facilities, showing that the present small-scaled facility could simulate a portion of large-scaled facilities’ operational envelope.
Publisher
한국항공우주학회
Issue Date
2023-10
Language
Korean
Article Type
Article
Citation

한국항공우주학회지, v.51, no.10, pp.677 - 684

ISSN
1225-1348
DOI
10.5139/JKSAS.2023.51.10.677
URI
http://hdl.handle.net/10203/313782
Appears in Collection
AE-Journal Papers(저널논문)
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