随着建设事业的发展,越来越多的建筑物中设置了空气调节系统。在人流密集的商场、体育馆、火车站、候机室等公共建筑的入口处往往采用空气幕来减少建筑物内外空气的自然对流,从而节省空调系统的能耗。对于空气幕的隔断性能,美国、苏联、日本等国的学者都进行了研究,并提出了相应的设计方法。然而循环平面空气幕的传热量计 With the development of construction, more and more buildings are equipped with air conditioning systems. Air curtains are often used at entrances of crowded shopping malls, gymnasiums, railway stations, and waiting rooms to reduce the natural convection of air inside and outside buildings, thereby saving energy consumption in air-conditioning systems. For the air curtain’s cut off performance, scholars from the United States, the Soviet Union, and Japan have conducted research and proposed corresponding design methods. However, the circulating air curtain heat transfer meter