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Experimental investigation of the velocity distribution of the attached plane jet after impingement with the corner in a high room

机译：高房间角落撞击后附着平面射流速度分布的实验研究

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Supplying air into rooms properly without causing a sensation of draught is a challenging task. Airflow patterns and the air velocity of attached plane jets should be predicted and designed accurately before the airflow enters an occupied zone in different applications. The objective of this study is to identify the airflow patterns of attached plane jets and set up an efficient model to predict the maximum jet velocity decay of an attached plane jet after its impingement with the corner in a high room. A full-scale test chamber was used to measure the jet velocity with a plane jet supply device. The attached plane jet is bounded initially by the ceiling and the insulated wall after being discharged from the jet slot. Three velocities from the slot, 0.5, 1.0, and 2.0 m/s, are used as the initial jet velocities with three Reynolds numbers, 1000,2000, and 4000, respectively. The results show that the behaviours of the attached plane jet differ from earlier studies carried out in a relatively low room. The virtual origin model setup in this study can be used to predict the maximum jet velocity decay for jet flow design with impingement in the corners of rooms.
机译：在不引起吃水感的情况下正确地将空气供应到房间中是一项艰巨的任务。在气流进入不同应用中的占据区域之前，应准确预测和设计气流模式和附着的平面射流的气流速度。这项研究的目的是确定附着的平面射流的气流模式，并建立一个有效的模型，以预测附着的平面射流在高房间的角落撞击后的最大射流速度衰减。使用全尺寸测试室通过平面射流供应装置测量射流速度。从喷嘴槽中排出后，连接的平面喷嘴最初受天花板和隔热墙的限制。缝隙中的三个速度分别为0.5、1.0和2.0 m / s，分别用作三个雷诺数分别为1000、2000和4000的初始射流速度。结果表明，附着的平面射流的行为与在相对较低的房间中进行的早期研究不同。本研究中的虚拟原点模型设置可用于预测在房间角落受到冲击的射流设计中的最大射流速度衰减。

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