单墙开洞对工业厂房平均内外压的影响研究  

Research on the influence of single wall opening on the average internal and external pressure of industrial building

作　　者：蒋瓅[1] 吴宏[1] 瞿革[1] 李庆武[1] JIANG Li;WU Hong;QU Ge;LI Qingwu(China Shipbuilding NRDI Engineering Co.,Ltd.,Shanghai 200063,China)

机构地区：[1]中船第九设计研究院工程有限公司,上海200063

出　　处：《建筑结构》2021年第15期99-106,共8页Building Structure

摘　　要：基于计算流体力学软件FLUENT,对不同洞口高度、洞口宽度及开洞位置的单开洞工业厂房进行了三维风场数值模拟分析,研究了单墙开洞对厂房平均内外压的影响。结果表明:洞口开敞对建筑外墙的平均风压系数影响较小,仅受洞口影响的分离区覆盖范围内的外墙平均风压系数会略有偏差;单开洞工业厂房的平均内压分布较均匀;当开洞墙体为迎风面且与来流方向垂直时,工业厂房内正压平均值受洞口高度影响较大,随洞口宽度的增加总体呈减小趋势,随洞口偏置程度的增加而减小;当开洞墙体平行于来流方向时,厂房内负压平均值受洞口高度影响小,在洞口宽度较小时与洞口宽度呈反比,随洞口偏置程度的增加而增大。Based on the computational fluid dynamics(CFD)software FLUENT,a three-dimensional wind field numerical simulation analysis was carried out on a single-opening industrial buildings with different opening heights,opening widths and opening positions,and the influence of single wall openings on the average internal and external pressure of the industrial building was studied.Results show that the single opening has little influence on the average wind pressure coefficient of the external wall of the building,and the average wind pressure coefficient of the external wall within the coverage area of the separation area affected only by the opening will slightly deviate.The average internal pressure distribution of a single-opening industrial building is relatively uniform.When the opening wall is on the windward side and perpendicular to the direction of the flow,the average positive pressure in the industrial building is greatly affected by the opening height,and it decreases with the increase of the opening width,and decrease with the increase of the opening bias degree.When the opening wall is parallel to the direction of incoming flow,when the opening wall is parallel to the direction of incoming flow,the average negative pressure in the industrial buildings is less affected by the opening height.When the opening width is small,the average negative pressure is inversely proportional to the opening width,and it increases with the increase of the opening bias degree.

关 键 词：单开洞工业厂房 平均风压系数 内压均值 数值模拟 

分 类 号：TU312.1[建筑科学—结构工程]