旋流风口的数值模拟与试验研究  

Numerical Simulation and Experimental Study of the Swirl Diffusers

作　　者：李以通[1] 孙丽颖 那海涛 王维[1] 刘亮[1] 

机构地区：[1]哈尔滨工程大学,黑龙江哈尔滨150001 [2]哈尔滨市热力公司,黑龙江哈尔滨150009

出　　处：《流体机械》2013年第5期1-6,共6页Fluid Machinery

基　　金：中央高校基本科研业务费专项资金资助项目(HEUCF130210);黑龙江省自然科学基金资助项目(E201139)

摘　　要：旋流风口的形状较为复杂,其建模情况影响着室内流场和室内自净时间。为了研究旋流风口的入流条件对室内流场的影响,对真实和简化的旋流风口物理模型进行数值模拟,并对采用旋流风口送风时的室内温度分布和CO2浓度进行试验测试,从而验证旋流风口物理模型建模方法的正确性。研究结果表明,合理给出轴向速度和切向速度的简化物理模型,可以准确的模拟旋流风口的室内流场,这样就不用花费大量的计算资源去计算真实的物理模型。The shapes of swirl diffusers are relatively complex, whose modeling situations affect indoor flow field and indoor self- purification time. In order to study the influence of swirl diffusers inflow conditions on the indoor flow field, the real and simplified physical models of the swirl diffusers were numerical simulated. Indoor temperature distribution and CO2 concentration were experimental tested when air supplied in swirl diffusers, thereby verified the correctness of the swirl diffusers physical modeling method. The research results showed that the simplified physical model Which was given axial velocity and tangential velocity reasonably,can simulated indoor flow field with swirl diffusers accurately, then we do not have to spend a lot of computational resources to calculate the real physical model.

关 键 词：旋流风口 室内流场 温度场 自净时间 

分 类 号：TH138.7[机械工程—机械制造及自动化] TU83[建筑科学—供热、供燃气、通风及空调工程]