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한국생물환경조절학회 / v.3, no.1, 1994년, pp.10-19 
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풍하중이 농업시설물의 구조적 안정성에 미치는 영향 -수치해석에 의한 풍력계수분포 산정-
( The Effect of Wind Force on Stability of Agricultural Structures - Numerical Calculation of Wind Pressure Coefficients - ) |
| 최홍림;손정익; 서울대학교 농업생명과학대학;서울대학교 농업생명과학대학;
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| 초 록 |
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| 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-$varepsilon$ 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-$varepsilon$ turbulence model to recirculation flow. |
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| 키워드 |
| 농업시설;구조설계;풍하중;풍력계수;k-$varepsilon$난류모델;agricultural structure;structural design;wind force;wind pressure coefficients;k-$varepsilon$ turbulent model; |
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생물환경조절학회지 / v.3, no.1, 1994년, pp.10-19
한국생물환경조절학회
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411922404193)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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