- 摘 要
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（中船第九設計研究院工程有限公司， 上海 200063）
［摘要］基于計算流體力學軟件FLUENT，對不同洞口高度、洞口寬度及開洞位置的單開洞工業(yè)廠房進行了三維風場數(shù)值模擬分析，研究了單墻開洞對廠房平均內(nèi)外壓的影響。結果表明：洞口開敞對建筑外墻的平均風壓系數(shù)影響較小，僅受洞口影響的分離區(qū)覆蓋范圍內(nèi)的外墻平均風壓系數(shù)會略有偏差；單開洞工業(yè)廠房的平均內(nèi)壓分布較均勻；當開洞墻體為迎風面且與來流方向垂直時，工業(yè)廠房內(nèi)正壓平均值受洞口高度影響較大，隨洞口寬度的增加總體呈減小趨勢，隨洞口偏置程度的增加而減??；當開洞墻體平行于來流方向時，廠房內(nèi)負壓平均值受洞口高度影響小，在洞口寬度較小時與洞口寬度呈反比，隨洞口偏置程度的增加而增大。
［關鍵詞］單開洞工業(yè)廠房；平均風壓系數(shù)；內(nèi)壓均值；數(shù)值模擬
中圖分類號：TU312-1文獻標識碼：A文章編號：1002-848X(2021)15-0099-08
Research on the influence of single wall opening on the average internal and external pressure of industrial building
JIANG Li, WU Hong, QU Ge, LI Qingwu
(China Shipbuilding NRDI Engineering Co., Ltd., Shanghai 200063, China)
Abstract: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.
Keywords:single-opening industrial building;average wind pressure coefficient;average internal and external pressure;numerical simulation
作者簡介：蔣瓅，碩士，工程師，Email：jiangli@ndri.sh.cn。
