技术中心

【英文篇名】 Influence of aerodynamic shadow zone on exhaust from residential kitchens 【作者中文名】 周传辉; 符永正; 【作者英文名】 By Zhou Chuanhui~★ and Fu Yongzheng★Wuhan University of Science and Technology; Wuhan; China; 【作者单位】 武汉科技大学; 【文献出处】 暖通空调, Hv 数值计算; 三维流场; 厨房排烟; 【英文关键词】 aerodynamic shadow zone; numerical calculation; three-dimensional flow field; kitchen exhaust; 【摘要】 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。 【英文摘要】 An aerodynamic shadow zone is a recirculation cavity formed by wind field around a building. It has influence on the quality of outdoor and indoor air. With the K-ε model, simulates three kinds of exhaust ways of residential kitchens. Considers that central discharge through the shafts is reasonable and that the minimal height of exhaust outlet over the roof should not be less than one fourth windward height of a building. 【基金】 湖北省自然科学基金资助项目(编号:2001ABB071)