开窗度和开窗楼层位置对围合式建筑自然通风的影响  

Influence of Window Opening Degree and Window Floor Position on Natural Ventilation of Enclosed Buildings

作　　者：马子茜 沈恒 MA Ziqian;SHEN Heng(Department of Refrigeration and Air Conditioning,Shanghai Ocean University)

机构地区：[1]上海海洋大学制冷与空调系

出　　处：《上海节能》2024年第7期1097-1104,共8页Shanghai Energy Saving

基　　金：国家自然科学基金(42075179);上海海洋大学青年教师科研启动基金(A2-2006-22-200312)。

摘　　要：研究建筑开窗对围合式建筑通风的影响,采用数值模拟方法分析开窗度(5%、7.5%、10%、12.5%和15%)以及开窗楼层位置(共4层)分别对围合式建筑中迎风建筑和背风建筑的室内以及两者之间耦合流动的影响。研究结果表明,在异层开窗条件下,迎风建筑的开窗楼层位置对背风建筑基本没有影响,背风建筑的开窗楼层位置对迎风建筑影响并不明显。在同层开窗条件下,保持开窗度不变时,随开窗楼层位置的升高,迎风建筑室内通风量增加,但在顶层(第4层)时略有下降;而背风建筑室内通风量基本不受影响。当开窗度变化时,迎风建筑和背风建筑的通风量均随开窗度增加而增加,两者的通风量呈线性关系,即两者的通风量比值接近定值2。This study investigates the impact of building window openings on ventilation in enclosed buildings.Numerical simulation methods are used to analyze the effects of window opening degree(5%,7.5%,10%,12.5%,and 15%)and window floor position(4 floors in total)on indoor and coupled flow between windward and leeward buildings in enclosed buildings.The research results indicate that under the condition of opening windows on different floors,the position of the window floor in windward buildings has little effect on leeward buildings,while the position of the window floor in leeward buildings has no significant effect on windward buildings.When the window opening degree remains unchanged on the same floor,the indoor ventilation volume of the windward building increases with the increase of the window opening floor position,but slightly decreases at the top floor(4th floor);The indoor ventilation volume of leeward buildings is basically not affected.When the window opening degree changes,the ventilation volume of both windward and leeward buildings increases with the increase of window opening degree,and the ventilation volume of the two shows a linear relationship,that is,the ventilation volume ratio of the two approaches a constant value of 2.

关 键 词：自然通风 穿堂风 数值模拟 围合式建筑 开窗度 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]