通风空调管道系统新型低阻力三通
Novel low resistance tees for ventilation and air conditioning duct systems
摘要：
讨论了通风空调管道中局部构件阻力的形成和减阻机理。介绍了通过优化弧面结构或添加导流片降低阻力的新型三通。采用数值模拟与全尺寸实验结合的方法，分析了不同流量比和管道面积比下新型三通的阻力特性。
关键词：通风空调管道；三通；局部阻力；减阻；弧线；导流片；流量比；面积比
Abstract：
This paper discusses the resistance formation and reduction mechanisms of local components in ventilation and air conditioning ducts, and presents the novel tees with low resistance by optimizing arc surface structure or adding a guide vane. The resistance characteristics of the novel tees under different flow ratios and pipeline area ratios are analysed by means of numerical simulation and full-scale experiment.
Keywords:ventilation and air conditioning duct; tee; local resistance; resistance reduction; arc; guide vane; flow ratio; area ratio