温室侧窗开窗形式对流量系数取值的影响

摘要

The flow coefficient according to the greenhouse windows was gained using the CFD technique. Though the simulative result, the forcesaffecting the flow coefficient were analyzed. The pressure affectedthe flow coefficient inconspicuously, especially in the range of 0-55 Pa which was usually used in the greenhouse design. The angle had the most effects on the flow coefficient, the flow coeffilient increased along with the augment of the angle,the ratio between width and length also had little effects on the flow coefficient.%运用CFD技术模拟温室窗洞口的气流流动情况分析侧窗开窗形式对流量系数的影响.分析结果表明,压力对流量系数的影响不明显,特别是在温室风机运行工作范围0～55 Pa之内;角度对流量系数的影响最大,随着角度的增大,窗洞口的流量系数也随之增加;长宽比对流量系数的影响不大.