龚坚刚,郜雅琨,丁祥,麻潇波,周奇,曹枚根
GONG Jiangang,GAO Yakun,DING Xiang,MA Xiaobo,ZHOU Qi,CAO Meigen

• 1:浙江华云电力设计咨询有限公司
• 2:汕头大学土木与环境工程系
• 3:北方工业大学土木工程学院

摘要(Abstract)：

山体阻塞和导流引起的上扬风对位于山体上坡或山体顶部的绝缘子串、导线风偏响应有较大影响。基于CFD（计算流体力学）数值模拟技术，对不同来流风场、不同山体坡度和不同山体高度条件下的概化山体周边流场进行数值模拟，分析了各种风速加速比的变化规律，计算得到了绝缘子串、导线的风偏响应。研究结果表明：随着山体高度的增加，绝缘子串、导线风偏响应呈增大趋势，当监测点在0.8倍山体高度以上时风偏响应已大于规范值；随着山体坡度的增大，绝缘子串、导线风偏响应亦呈增大趋势，且其增大幅度较大。
The upward wind caused by the blockage and diversion of the mountain significantly influences the windinduced response of the insulator strings and transmission lines located on the uphill or the top of the mountain.Based on the CFD(computational fluid dynamics) numerical simulation technology, this paper carries out numerical simulation of generalized flow field around the mountain with different incoming wind fields, different mountain slopes and different mountain heights. Furthermore, it analyzes the variation law of the acceleration ratio of wind speed in all directions and obtains through calculation the wind-induced response of the insulator strings and conductors. The research results show that with the increase of the mountain height, the wind-induced response of the insulator strings and conductors is increasing. When monitored at a point of 0.8 times as high as the mountain, the windinduced response has exceeded the standard value; with the increase of mountain slope, the wind-induced response of insulator strings and conductors increases significantly.

关键词(KeyWords)： 上扬风;CFD数值模拟;风速加速比;绝缘子串;导线;风偏响应
upward wind;CFD numerical simulation;wind speed acceleration ratio;insulator string;conductor;wind-induced response

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司科技项目（2020C1D02P09）

作者(Author): 龚坚刚,郜雅琨,丁祥,麻潇波,周奇,曹枚根
GONG Jiangang,GAO Yakun,DING Xiang,MA Xiaobo,ZHOU Qi,CAO Meigen

DOI: 10.19585/j.zjdl.202304012

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