- 원예시설용 망의 압력강하 특성에 대한 실험적 연구
- ㆍ 저자명
- 염성현,강승희,Yum. Sung Hyun,Kang. Seung-Hee
- ㆍ 간행물명
- 한국농공학회논문집
- ㆍ 권/호정보
- 2013년|55권 6호|pp.31-35 (5 pages)
- ㆍ 발행정보
- 한국농공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This study was carried out to present the pressure drop for various wind speeds through nine types of screens used in horticultural facilities. The screens have been widely used to prevent harmful insects from being entered into agricultural facilities, to reduce strong wind and to shade a light as well. Whatever the usage of the screens was, it was necessary to have good knowledge of how much the screen caused a pressure drop for wind speeds when analyzing both the inner thermal-flow distribution in the facility and the effect of reducing wind speed by using CFD. Furthermore, as for wind screens, the pressure drop for wind speeds was needed as a design load in evaluating the structural stability of the structures supporting the screens. Therefore, the pressure drop through the screens for wind speeds of 5~30 $m{cdot}s^{-1}$ at about 5 $m{cdot}s^{-1}$ interval and inflow angles of $0{sim}45^{circ}$ at an interval of $15^{circ}$ was respectively measured in a subsonic wind tunnel. The relation of the pressure drop for various screens was well fitted as a secondorder polynomial expression.