理论速度场在带法兰圆形通风罩中的实验验证。

Empirical validation of theoretical velocity fields into flanged circular hoods.

作者信息

Flynn M R, Ellenbecker M J

出版信息

Am Ind Hyg Assoc J. 1987 Apr;48(4):380-9. doi: 10.1080/15298668791384904.

Abstract

Previously presented theoretical models of the three-dimensional velocity field into a flanged circular hood, both with and without crossdraft, are examined by hot film anemometry. A final model with empirical modifications is selected and validated. Computer generated streamline maps, which enable visualization of the effects of crossdrafts on hood performance, are presented. The theoretical basis for capture efficiency using the model is discussed.

摘要

以前提出的关于有横向气流和无横向气流情况下，进入带法兰圆形通风柜的三维速度场的理论模型，通过热膜风速仪进行了研究。选择并验证了一个经过经验修正的最终模型。给出了计算机生成的流线图，这些流线图能够直观显示横向气流对通风柜性能的影响。讨论了使用该模型计算捕集效率的理论基础。