机构地区: 湖南大学
出 处: 《暖通空调》 2006年第12期42-45,共4页
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。 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.
领 域: [建筑科学]