摘要
覆冰导线的空气动力参数是导线舞动的关键因素.由于覆冰形状的多样性,风洞试验研究代价巨大,仅靠风洞试验提供覆冰导线的空气动力参数是不实际的,因此有必要采用数值模拟的方法.提出了基于面元法的覆冰导线空气动力参数的数值模拟方法,采用有粘性的绕流模型,编制计算程序对覆冰单导线随攻角变化的空气动力参数进行了数值模拟计算.该程序系统简单易用,能快速得到结果.通过比较,所得数值模拟结果与试验结果基本一致,一定程度上反映了覆冰单导线气动力的规律.该方法是一种实用、快速、有效的数值解法,为覆冰导线舞动计算与仿真的深入研究提供了一种有效的途径.
The aerodynamic coefficients of the iced conductors are key parameters for power transmission line galloping problem.As the ice shape is various,a wind tunnel study costs too much,it is not practical.So the numerical simulation study becomes most helpful.The numerical simulation method based on surface panel method for aerodynamic coefficients of iced conductors is presented.Considering the viscous flow field around iced conductor models,the computation program is made to calculate aerodynamic coefficients changing with the angle of attack on the single iced conductor.The program system is simple to use,and enables a user to get the results faster.By comparison,the numerical result is similar to the result of experiment.It reflects some rules of the aerodynamic characteristics of single iced conductor of power transmission line.The results show that this numerical method is practical,fast and efficient.It provides an efficient way for further investigation of calculation and simulation of galloping.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2012年第1期84-86,共3页
Engineering Journal of Wuhan University
基金
国家电网科技项目(编号:GC51201103565)
关键词
空气动力参数
舞动
数值模拟
面元法
aerodynamic parameters
galloping
numerical simulation
surface panel method
作者简介
展雪萍（1979～），女，工程师，主要研究方向为固体力学，E—mail：whujingguo@163．com．
