改进型诱导器系统室内气流组织模拟与实验研究

Numerical simulation & experimental investigation of indoor air distribution for improved induction unit system

改进型诱导器送风可创造出无气流感、无温差感的舒适环境。为探究与评价改进型诱导器应用下的室内气流组织效果,引入CFD数值模拟方法分别对改进型诱导器送风和双层百叶垂直送风方式下的房间气流组织进行模拟,对比得到两种送风条件下的房间温度场和速度场,并实验验证模型可靠性。结果表明,由于改进型诱导器具有风口面积大、送风速度小的特点,相对于双层百叶垂直送风形式,其送风温度梯度小、温差小,房间气流速度分布均匀且处在舒适范围。

Improved Air Inductive Unit （IAU）can create comfort zones without temperature and airflow difference sense. To research and evaluate the air distribution effect forming by terminal IAU air supply, CFD numerical simulation method was adopt- ed. The air distribution simulation was carried out to simulate the conditions which were controlled by improved IAU air supply and double shutter vertical （DSV）air supply, and temperature field and velocity field were obtained in two conditioned rooms and the validity of models was confirmed though experiments. The results show that owning to the improved IAU＇s characteristics of large area of air supply inlet and low air supply velocity, it has little temperature gradient and difference comparing with DSV air supply, the air velocity is uniform and in a comfortable range.