覆冰四分裂导线空气动力系数数值模拟

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (5) : 132-137.

论文

覆冰四分裂导线空气动力系数数值模拟

蔡萌琦1，严波1，吕欣2，周林抒1

作者信息 +

Numerical investigation on aerodynamic coefficients of iced quad bundle conductor

CAI Meng-qi1，YAN Bo1，Lü Xin2，ZHOU Lin-shu1

Author information +

文章历史 +

摘要

利用Fluent流体动力学分析软件计算典型覆冰四分裂导线在特定风速下的绕流问题，所得各覆冰子导线空气动力系数随风攻角变化曲线与由风洞试验所得规律一致。基于数值模拟和风洞试验所得气动系数确定的Den Hartog系数与Nigol系数随风攻角的变化结果吻合。利用由数值模拟和风洞试验获所得气动参数，采用Abaqus有限元软件模拟典型线路段的舞动，通过舞动特性分析比较发现，利用该两组气动系数模拟得到的导线舞动特性一致，表明采用数值模拟方法确定覆冰导线的空气动力系数可用于模拟覆冰导线舞动。

Abstract

Numerical model for fluid flow around a typical iced quad bundle conductor is set up, and the aerodynamic coefficients varying with wind attack angle of the conductor are numerically investigated by means of FLUENT software. The Den Hartog and Nigol coefficients determined by numerical simulation are agreed with those obtained by the wind tunnel test. Moreover, galloping of iced quad bundle conductor lines based on aerodynamic coefficients obtained by numerical simulation method and wind tunnel test are simulated by ABAQUS software. The galloping characteristics of the transmission lines based on the aerodynamic coefficients by numerical method and test are agree, which demonstrates that the availability applying the numerical simulation method to obtain the aerodynamic coefficients of iced conductors for analysis of galloping of transmission lines.

导出引用

蔡萌琦;严波;吕欣;周林抒. 覆冰四分裂导线空气动力系数数值模拟[J]. 振动与冲击, 2013, 32(5): 132-137

CAI Meng-qi;YAN Bo;Lü Xin;ZHOU Lin-shu. Numerical investigation on aerodynamic coefficients of iced quad bundle conductor[J]. Journal of Vibration and Shock, 2013, 32(5): 132-137