| 温室顶窗开窗形式对流量系数取值的影响 |
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| 引用本文： | 宫彬彬,周智,李敬蕊. 温室顶窗开窗形式对流量系数取值的影响[J]. 北方园艺, 2010, 0(14): 71-74 |
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| 作者姓名： | 宫彬彬 周智 李敬蕊 |
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| 作者单位： | 河北农业大学,河北,保定,071000;河北农业大学,河北,保定,071000;河北农业大学,河北,保定,071000 |
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| 基金项目： | "十一五"国家科技支撑计划资助项目，农业部农业产业技术体系建设 |
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| 摘 要： | 温室顶窗的开窗形式是温室自然通风设计的重要参数。其中通风量计算所涉及到的流量系数一直都是采用工民建设计规范中的流量系数作为参考。随着设施农业的快速发展,与温室窗洞口特性相符的流量系数成为温室通风量设计时的迫切需要。运用CFD技术模拟温室顶窗的气流流动情况分析常见开窗形式对流量系数影响。结果表明:圆拱形温室屋顶由于窗口边界平滑,更加适合气流流动,其流量系数总体要比尖屋顶温室顶窗的大,在生产中同等高度的温室更适宜自然通风,其中最大的是谷间卷帘开窗。
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| 关 键 词： | CFD 流量系数 数值模拟 温室自然通风 |
Effect of Greenhouse Transom Windows Opening forms on the Value of the Flow Coefficient |
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| GONG Bin-bin,ZHOU Zhi,LI Jing-rui. Effect of Greenhouse Transom Windows Opening forms on the Value of the Flow Coefficient[J]. Northern Horticulture, 2010, 0(14): 71-74 |
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| Authors: | GONG Bin-bin ZHOU Zhi LI Jing-rui |
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| Affiliation: | GONG Bin-bin,ZHOU Zhi,LI Jing-rui(Hebei Agricultural University,Baoding,Hebei 071000) |
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| Abstract: | The ventilation is one of the most important components in greenhouse design.The flow coefficient in the equations of ventilation refers to the architectural criterion at all times.With the quick development of greenhouse industry,the flow coefficient according with the greenhouse window becomes an exigent need when designing the quantity of ventilation.In this article,the flow coefficient according with the greenhouse transom windows was gained using the CFD technique.The results showed that arched roof of... |
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| Keywords: | CFD |
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