A low-resistance elbow with a bionic sawtooth guide vane in ventilation and air conditioning systems

作     者：Chi Zhang Angui Li Jigang Che Yue Li Qi Liu Yuhang Zhao Chi Zhang;Angui Li;Jigang Che;Yue Li;Qi Liu;Yuhang Zhao

作者机构：School of Building Services Science and EngineeringXi'an University of Architecture and Technology(XAUAT)Xi'an 710055China The Artificial Environment Control Technology Achievement Innovation Center of XAUAT and YantaiYantai 264006China 

出 版 物：《Building Simulation》 (建筑模拟（英文）)

年 卷 期：2022年第15卷第1期

页      面：117-128页

核心收录：

学科分类：08[工学] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：bionic sawtooth grooves guide vane resistance entropy production 

摘      要：Elbow resistance is an important part of energy consumption in ventilation and air conditioning(VAC)*** considering the structural characteristics of bat wings and humpback whale pectoral fins,a simplified leading edge for sawtooth guide vanes is *** on the theory of fluid mechanics,the resistance reduction mechanism of the sawtooth guide vane is *** numerical calculation results show that proper sawtooth groove parameters for the guide vane can effectively reduce the elbow *** with that for a normal guide vane,the maximum resistance can be reduced by approximately 9%with the new *** addition,we analyze the influence of the sawtooth guide vane on the entropy production of the duct elbow and the relationship between entropy production and the resistance of the duct ***,the resistance reduction performance of the sawtooth guide vane is verified through full-scale tests.