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空气动力阴影区是建筑物周围风场形成的旋涡区域,该区域的存在会影响室内外的空气品质。利用K ε湍流模型对住宅厨房三种排烟方式进行了数值模拟,认为厨房由管道竖井集中屋顶排烟方式合理,排烟口最小高度应不低于建筑物迎风尺寸的1/4。
The aerodynamic shadow area is a swirling area formed by the wind field around the building. The presence of this area will affect the indoor and outdoor air quality. The K ε turbulence model was used to simulate the three kinds of smoke exhaust in residential kitchens. It is concluded that the smoke exhaust from the roof is centralized in the kitchen, and the minimum height of the exhaust port should not be less than 1/4 of the windward dimension of the building.