通风空调管道系统分流三通减阻方法研究
Resistance reduction method for dividing tee of ventilation and air conditioning duct systems
摘要：
在通风空调管道系统中，三通等局部构件的阻力引起的能耗显著。采用数值模拟和全尺寸试验的方法对3种分流三通进行了结构优化研究，提出将直通管壁面优化为弧面，得到最优量纲一弧面高度。研究结果显示，优化后的三通能够降低直通管方向局部阻力，与传统分流三通相比，减阻率最大为24.20%。通过全尺寸试验验证了优化后分流三通的减阻效果。
Abstract：
In the ventilation and air conditioning duct system, the energy consumption of local components such as the tee is significant due to the resistance effect. In this paper, the numerical simulation and full-scale test are used to optimize the structure of three dividing tees. It is proposed to optimize the straight pipe wall as a camber surface, and the optimal dimensionless camber surface height is obtained. The research results show that the optimized tee can reduce the local resistance in the direction of the straight pipe. Compared with the traditional dividing tee, the maximum drag reduction rate is 24.20%. The drag reduction effect of the optimized dividing tee is verified by a full-scale experiment.
Keywords:ventilation; air conditioning; duct; dividing tee; resistance reduction; structural optimization; camber surface; full-scall experiment