技术中心

【英文篇名】 Discussion on influencing factors of opening discharge coefficient in natural ventilation 【作者中文名】 周军莉; 张国强; 许艳; 吴加胜; 【作者英文名】 By Zhou Junli; Zhang Guoqiang; Xu Yan and Wu Jiasheng Hunan University; Changsha; China; 【作者单位】 湖南大学; 【文献出处】 暖通空调, Heating Ventilating 开口; 流量系数; 【英文关键词】 natural ventilation; opening; discharge coefficient; 【摘要】 开口特性参数———流量系数是影响建筑自然通风流场的关键因素之一。对影响流量系数的因素如开口长宽比、开度、内外压差和温差、开口上安装的纱窗等进行了分析,指出了常值计算的有限性,提出自然通风研究应进行变流量系数定性分析。 【英文摘要】 Discharge coefficient is a major factor influencing flow field in natural ventilation buildings. Analyses the influencing factors of the discharge coefficient such as the length/width ratio of the opening, the opening degree, the pressure difference and the temperature difference across the opening and a screen. Points out that the discharge coefficient can not be considered as a constant but should be analysed with actual conditions.