지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 저널정보
- 한국가시화정보학회 KOREA-JAPAN Joint Seminar on Particle Image Velocimetry The Japan-Korea Joint Seminar on Particle Image Velocimetry
- 발행연도
- 2006.9
- 수록면
- 80 - 85 (6page)
이용수
초록· 키워드
오류제보하기
A dynamic PlV system with 2 ㎑ at mega-pixel frame and up to 10 ㎑ at 512x256 pixels has been developed in success. The combination of a high-speed CMOS camera and a high-speed single-rod Nd:YLF laser materialized the present dynamic PlV system with an in-house timing controller. The dynamic PlV can give the huge amount of data. It can resolve the dynamics of the flow field including vortex motion. The dynamic PlV will be a standard tool for the flow analysis.
Measurement of flow vorticity is very important to understand the flow structure. To measure three components of vorticity, a scanning stereoscopic PlV system, a dual-plane stereoscopic PlV system or a Tomo-PlV is available. On the other hand, a stereoscopic dynamic PlV system can provide a highly time-resolved velocity vectors, then if Taylor hypothesis could be applied, two in-plane components of vorticity would be estimated.
There will be various fields of applications, such as turbulent flow, transient flow, micro flow, 3D volume flow, and so on, while following procedures should be investigated. To obtain the high' reliability velocity and vorticity vector data, the low-pass filtering technique for spatial and temporal domain should be standardized, including the PlV evaluation algorithm. The advanced technique of comparison between the measured results and computer simulation will be needed. The spatial and temporal frequency analysis would be necessary. The wavelet analysis or advanced POD analysis may be applicable. Furthermore, a higher frame rate, a shorter camera dead?time, a higher speed data transfer system, a higher speed processing system against a huge data, and so on, would be highly expected.
Measurement of flow vorticity is very important to understand the flow structure. To measure three components of vorticity, a scanning stereoscopic PlV system, a dual-plane stereoscopic PlV system or a Tomo-PlV is available. On the other hand, a stereoscopic dynamic PlV system can provide a highly time-resolved velocity vectors, then if Taylor hypothesis could be applied, two in-plane components of vorticity would be estimated.
There will be various fields of applications, such as turbulent flow, transient flow, micro flow, 3D volume flow, and so on, while following procedures should be investigated. To obtain the high' reliability velocity and vorticity vector data, the low-pass filtering technique for spatial and temporal domain should be standardized, including the PlV evaluation algorithm. The advanced technique of comparison between the measured results and computer simulation will be needed. The spatial and temporal frequency analysis would be necessary. The wavelet analysis or advanced POD analysis may be applicable. Furthermore, a higher frame rate, a shorter camera dead?time, a higher speed data transfer system, a higher speed processing system against a huge data, and so on, would be highly expected.
목차
1. Introduction
2. Dynamic PIV System
3. Vortex Motion in a Jet Flow
4. Stereoscopic Dynamic PIV
5. Summary
References
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UCI(KEPA) : I410-ECN-0101-2009-505-016062998