末端装置特性对置换通风工作区速度场与温度梯度的影响  

Influence of the characteristics of air supply terminal devices on velocity field and temperature gradient in occupied zone with displacement ventilation

作　　者：马仁民[1] 

机构地区：[1]西安建筑科技大学

出　　处：《暖通空调》2003年第3期12-16,共5页Heating Ventilating & Air Conditioning

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。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.

关 键 词：送风末端装置 置换通风 速度场 温度梯度 阿基米德数 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]