噪声与振动控制2024，Vol.44Issue(2)：82-87,6.DOI:10.3969/j.issn.1006-1355.2024.02.014
超高输电铁塔的气动噪声特性研究
Study on the Aerodynamic Noise Characteristics of Ultra-high Electricity Transmission Tower
贺伟军 1潘巍巍 1郑新龙 1卢正通 1林晓波 1吴易科1
作者信息
- 1. 国网浙江省电力有限公司 舟山供电公司,浙江 舟山 316000
- 折叠
摘要
Abstract
The ultra-high electricity transmission tower plays an important role in ensuring the daily life of residents and industrial production.Due to its extremely high height,the aerodynamic noise problem caused by wind cannot be ignored.In this paper,the CFD(Computational Fluid Dynamics)simulation model is established to solve the problem of disturbing residents caused by aerodynamic noise of ultra-high electricity transmission tower.The standard k-ε turbulent equation is used to calculate the initial steady flow field,and the large eddy simulation method and FW-H acoustic analogy method are respectively used to calculate the transient flow field and aerodynamic noise.With the obtained results,the wind flow around the tower and aerodynamic noise characteristics of the flow field are analyzed.The results show that the left and right sides of four main longitudinal beams and the elevator shaft have strong pressure pulsations,which are the main sound sources.The maximum value appears in the top area of the elevator shaft.The total sound pressure level of each measuring point increases first and then decreases along the height,and the change of the total sound pressure level along the height is jointly controlled by the wind speed and the tower structures' geometric parameters.The position of the sound source above the middle of the tower and below the cross arm,which is obtained through CFD and aeroacoustics simulations,is verified by acoustic imaging.Furthermore,there is a strong correlation between the noise caused by the wind flow around the tower and the wind speed.The research on aerodynamic noise characteristics of ultra-high electricity transmission tower presented in this paper has practical significance for the noise reduction design of the transmission tower.关键词
声学/超高输电铁塔/气动噪声/计算流体力学/大涡模拟/FW-H声类比Key words
acoustics/ultra-high electricity transmission tower/aerodynamic noise/computational fluid dynamics/large eddy simulation/FW-H acoustic analogy分类
通用工业技术引用本文复制引用
贺伟军,潘巍巍,郑新龙,卢正通,林晓波,吴易科..超高输电铁塔的气动噪声特性研究[J].噪声与振动控制,2024,44(2):82-87,6.
