- 물성치 적용 기법에 따른 하이브리드 풍력 블레이드 동적특성 해석에 관한 연구
- ㆍ 저자명
- 강병윤,한정영,홍철현,문병영,Kang. Byong-Yun,Han. Jeong-Young,Hong. Cheol-Hyun,Moon. Byong-Young
- ㆍ 간행물명
- 유체기계저널
- ㆍ 권/호정보
- 2012년|15권 2호|pp.5-11 (7 pages)
- ㆍ 발행정보
- 유체기계공업학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, the heat transfer coefficient measurement techniques using TSP(temperature sensitive paint) were introduced and the results of a comparative study on the heat transfer coefficient measurement by steady state and transient TSP techniques were discussed. The distributions of heat transfer coefficient by a single $60^{circ}$ inclined impingement jet on a flat surface were measured by both techniques. Tested Reynolds number based on the jet diameter (d) was 30,000 and the distance between jet exit and target plate (L) was fixed at 10d. Results showed that the measured Nusselt number by both techniques indicated significant difference except near the center of impingement jet. Also, the heat transfer coefficients measured by the transient TSP technique were affected by the reference temperature of the jet. Based on the measured data, characteristics of both TSP techniques were analyzed and suggestions for applying them were also given.