풍하중이 농업시설물의 구조적 안정성에 미치는 영향 -수치해석에 의한 풍력계수분포 산정-
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 1994.06
- 10페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 한국생물환경조절학회
ㆍ수록지정보 : 생물환경조절학회지(구 시설원예ㆍ식물공장) / 3권 / 1호
ㆍ저자명 : 최홍림, 손정익
영어 초록
Wind load is known to be one of major forces to influence the stability of agricultural structures. General flow fields were calculated to determine flow characteristics over the envelop of the following three types of greenhouses with arched roof : single span, twin span greenhouses, and two single span greenhouses apart 3m inbetween. Pressure coefficients along the envelop of greenhouse were numerically calculated by the k-ε turbulence model, which lead to determine wind forces on it. Curvilinear coordinate for an arched roof and the upwind scheme were adopted for the study. The calculated pressure coefficients were validated with the avaliable data of Japanese Standard and NGAM Standard. The Magnitude of calculated forces over the envelop was not in good accordance with data except the windward wall. Even tile data of Japanese and NGAM Standard for validation deviated a lot from each other in quantity and quality. Such discrepancy may be attributed to different geometric and/or flow configuration conditions for experiments, or the insenstivity of the k-ε turbulence model to recirculation flow.
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