非等温竖直壁面贴附式送风流场及温度场研究
Study on a novel ventilation mode based on attached air curtain in non-isothermal condition
摘要：
在对现有通风空调系统常用气流组织形式对比分析的基础上，提出了一种竖直壁面贴附式送风模式。通过全尺寸可视化实验和CFD数值模拟相结合的方式，研究了热送风模式下不同送风速度、温度和风口位置时房间内的流场和温度场分布，并给出了贴附过程中射流轴线速度衰减的表达式。研究表明，竖直壁面贴附式送风是一种通风效率较高、工作区人员热舒适性较好的气流组织形式。
Abstract：
By comparative analysis of traditional airflow patterns used in HVAC system, presents a novel ventilation mode based on attached air curtain. Using full scale visualization experiment and CFD numerical simulation, studies the velocity and temperature field distribution of this mode, under different supply air velocities, temperatures and slot locations in the non-isothermal condition. Meanwhile, obtains the formulation of maximum jet velocity decay. The results show the ventilation mode can create comfortable environment in occupied zone, with higher ventilation efficiency.
Keywords:ventilation based on attached air curtain, velocity field, temperature field, air distribution, visualization experiment, numerical simulation