This study considers a method of air flow cooling in closed-circuit wind tunnels by means of constant exhaust of a part of warm air and its change for colder outside air. The proposed options of air exchange arrangement for T-204 subsonic wind tunnel designed in TsAGI are designated for work in full power conditions in a closed test section at w=160 m/s provided that the ambient air temperature is T_f=20°C. The work delivers the results of air flow numerical study in wind tunnel duct parts in presence of air exchange holes.
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机译：该研究考虑了通过恒温的恒定排气的恒定排气及其对较冷的外部空气的变化的封闭式风隧道中的空气流冷却方法。所提出的T-204亚源隧道空气交换装置的选择，用于在TSAGI中设计，用于在W = 160 m / s的闭合试验部分中的全功率条件下的工作，只要环境空气温度为t_f = 20°C。在空气交换孔的存在下，该工作提供了风洞管道部件的空气流量研究结果。
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