基于科恩达效应通风装置气流特性研究  

Airflow Characteristic of Ventilation Installation based on Coanda Effect

作　　者：叶雅玲 彭小勇 胡畏 张园 YE Yaling;PENG Xiaoyong;HU Wei;ZHANG Yuan(College of Civil Engineering, University of South China)

机构地区：[1]南华大学土木工程学院

出　　处：《建筑热能通风空调》2017年第11期23-27,共5页Building Energy & Environment

摘　　要：采用数值模拟和实验方法研究了基于科恩达效应翼型空气诱导器的流场特征,翼型空气诱导器能很好地诱导周边气流贴附科恩达曲面向翼型尾部流动,数值模拟值和实验结果的良好吻合,验证了数值模拟方法的可靠性。设计了以翼型空气诱导器为基本单元的新型通风装置,数值模拟不同诱导速度和风框尺寸下通风装置流场,分析了流场特征和通风装置诱导率变化规律。The flow field characteristic of the airfoil induction unit based on Coanda effect was studied in numerical simulation and experimental methods.The airflow around the appliance flowed to the tail of the airfoil,which was induced to attach to the Coanda surface by the airfoil induction unit.Good agreement is obtained between the results of the numerical simulation and the experimental,and the reliability of the numerical simulation method is verified.The new ventilation installation using the airfoil induction unit as the basic unit was designed,and the flow field of the ventilation installation was simulated in different inducing velocities and different frame sizes.the flow field characteristic and the change rule about the ventilation installation was analyzed.

关 键 词：通风装置 科恩达效应 空气诱导器 诱导率 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]