대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2003년도 추계학술대회
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- Pages.792-797
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- 2003
Helical Vane 을 이용한 펄스파의 피동제어
Passive Control of the Impulse Wave Using a Helical Vane
- Yang, Soo-Young ;
- Lee, Dong-Hoon ;
- Kim, Heuy-Dong ;
- Setoguchi, Toshiaki (SAGA University, Mechanical Eng.)
- 발행 : 2003.11.05
초록
A helical vane is applied to reduce the magnitude of the impulse wave discharged from the exit of a duct. A shock tube with an open end is used to investigate the effect of the helical vanes on the impulse wave magnitude. Four different types of helical vanes are installed into the low-pressure tube of shock tube. The magnitude of the incident shock wave is varied below 1.25, and the magnitude of impulse wave is measured using a pressure transducer mounted on a wedge probe. Instant images of the impulse wave are obtained by means of the Schlieren optical method. The present experimental results show that the helical vane considerably reduces the magnitude of the impulse wave and the vane effects are more remarkable for stronger incident shock wave.
키워드