通风空调管道系统分流三通减阻方法研究
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。
关键词：通风空调风管分流三通减阻结构优化弧面全尺寸试验
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参考文献参考文献
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[2] ASHRAE.ASHRAE handbook of fundamentals[M].Atlanta:ASHRAE Inc,1972:35.62-35.64．
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[5] 谢振华，周艳荣．90°方截面弯管内加装导流板的优化研究[J]．应用基础与工程科学学报，2009,17(4):568-571．
[6] 孟康，程永，肖玲，等．不同夹角T型三通流动特性的数值研究[J]．黑龙江科技信息，2010,31(1):30-31．
[7] LI X,WANG S.Flow field and pressure loss analysis of junction and its structure optimization of aircraft hydraulic pipe system[J].Chinese journal of aeronautics,2013,26(4):1080-1092．
[8] 卞彩侠．空冷蒸汽管道三通处加装导流片的数值模[J]．区域供热，2017(2):50-53．
[9] 陈仕扩，郑家芬，高然，等．通风空调管道分流T形三通减阻研究[J]．暖通空调，2018,48(11):109-113．
[10] KOKA F,MYOSE R B,HOFFMANN K A.Numerical assessment of pulsatile flow through diverging tees with a sharp and round-edge junction[J].International journal of heat and fluid flow,2019,76:1-13．
[11] 孙一坚．工业通风[M].3版．北京：中国建筑工业出版社，1997:15-18.
[1] MILLER D S.Internal flow system[M].Cranfield:BHR Group Limited,1978:91-92．
[2] ASHRAE.ASHRAE handbook of fundamentals[M].Atlanta:ASHRAE Inc,1972:35.62-35.64．
[3] 陆耀庆．实用供热空调设计手册[M].2版．北京：中国建筑工业出版社，2008:1125-1128．
[4] 惠荣娜．通风管道局部构件阻力系数及减阻方法研究[D]．西安：西安建筑科技大学，2007:42-47．
[5] 谢振华，周艳荣．90°方截面弯管内加装导流板的优化研究[J]．应用基础与工程科学学报，2009,17(4):568-571．
[6] 孟康，程永，肖玲，等．不同夹角T型三通流动特性的数值研究[J]．黑龙江科技信息，2010,31(1):30-31．
[7] LI X,WANG S.Flow field and pressure loss analysis of junction and its structure optimization of aircraft hydraulic pipe system[J].Chinese journal of aeronautics,2013,26(4):1080-1092．
[8] 卞彩侠．空冷蒸汽管道三通处加装导流片的数值模[J]．区域供热，2017(2):50-53．
[9] 陈仕扩，郑家芬，高然，等．通风空调管道分流T形三通减阻研究[J]．暖通空调，2018,48(11):109-113．
[10] KOKA F,MYOSE R B,HOFFMANN K A.Numerical assessment of pulsatile flow through diverging tees with a sharp and round-edge junction[J].International journal of heat and fluid flow,2019,76:1-13．
[11] 孙一坚．工业通风[M].3版．北京：中国建筑工业出版社，1997:15-18.
Resistance reduction method for dividing tee of ventilation and air conditioning duct systems
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;
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