In this paper,the flow resistance loss of large pipe diameter 90° elbow was numerically studied,the internal flow field characteristics of air flowing through the elbow were analyzed,and the influencing factors of flow resistance loss of fluid flowing through a 90° elbow were studied.Then,different formulas used to calculate the resistance coefficient of elbow were selected,and the reliability of equivalent length method and drag coefficient method for calculating the flow resistance loss of elbow was compared,which provides reference for designers.
关键词
大管径/90°弯头/压降/数值模拟/当量长度法/阻力系数法
Key words
large pipe diameter/90° elbow/pressure drop/numerical simulation/equivalent length method/drag coefficient method
维普
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