技术中心

【英文篇名】 Influence of the characteristics of air supply terminal devices on velocity field and temperature gradient in occupied zone with displacement ventilation 【作者中文名】 马仁民; 【作者英文名】 By Ma Renmin ★★Xi'an University of Architecture China; 【作者单位】 西安建筑科技大学; 【文献出处】 暖通空调, Hv 置换通风; 速度场; 温度梯度; 阿基米德数; 【英文关键词】 air supply terminal device; displacement ventilation; velocity field; temperature gradient; Archimedes number; 【摘要】 阐述了稍低于室温的空气经靠墙散流器低速进入后 ,下沉于地面及扩散的概念。介绍了贴地冷气流层速度分布的一般特性 ,分析了风口特性对地面气流速度场及工作区空气温度梯度的影响。 【英文摘要】 Describes the concept of the supplied air with low velocity and slightly colder temperature from a diffuser close to the wall dropping and spreading on the floor. Presents the general feature of the velocity distribution of the airflow layer close to the floor, and analyses the influences of the characteristics of the diffuser on the airflow velocity field and the temperature gradient in the occupied zone.