가시화 기법을 사용한 자유낙하하는 반구모델의 자세각 및 항력계수 측정 Attitude Angle and Drag Coefficient Measurements of Free-Falling Hemisphere Using a Visualization Technique

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In this work, the effect of attitude angle variation on drag coefficients of hemisphere in a Mach 6 flow has been investigated. Experiments were conducted in a shock tunnel and a free-falling technique was used to minimize flow disturbance by a sting. For attitude and drag coefficient measurements of a free-falling hemisphere, a free-falling technique based on a releasing mechanism with a stair-typed module and an electromagnet was developed. A shadowgraph technique was used for flow visualization using a high-speed camera.
Publisher
한국항공우주학회
Issue Date
2017-08
Language
Korean
Article Type
Article
Citation

한국항공우주학회지, v.45, no.8, pp.619 - 626

ISSN
1225-1348
DOI
10.5139/JKSAS.2017.45.8.619
URI
http://hdl.handle.net/10203/225476
Appears in Collection
AE-Journal Papers(저널논문)
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