扰流防舞器气动力特性数值模拟

孙珍茂; 楼文娟

2009, 1(1): 67-71.

扰流防舞器气动力特性数值模拟

孙珍茂 , 楼文娟

浙江大学结构工程研究所, 浙江杭州 310058

网络出版日期: 2009-09-01

作者简介: 孙珍茂(1979 -), 男, 安徽太湖人, 博导生, 主要研究方向为结构风工程。Email:zhenmaosun@163.com

基金项目: 国家自然科学基金重点项目 50638010国家自然科学基金重点项目(50638010)

Simulation of Aerodynamic Characteristics of Air Flow Spoiler

Sun Zhenmao , Lou Wenjuan

Institute of Structural Engineerin, Zhejiang University, Hangzhou 310058, China

Available Online: 2009-09-01

引用本文: 孙珍茂, 楼文娟. 扰流防舞器气动力特性数值模拟[J]. 土木建筑工程信息技术, 2009, 1(1): 67-71.

Citation: Sun Zhenmao, Lou Wenjuan. Simulation of Aerodynamic Characteristics of Air Flow Spoiler[J]. Journal of Information Technologyin Civil Engineering and Architecture, 2009, 1(1): 67-71.

摘要:为了研究扰流防舞器对覆冰输电导线气动力的影响及其防舞效果, 利用计算流体动力学技术(CFD)模拟了新月形覆冰导线截面的气动力曲线, 计算了安装扰流防舞器后新月形覆冰导线一个节距内8个等分截面的平均气动力曲线。计算结果表明:安装扰流防舞器后导线的阻力系数显著增大, 升力系数曲线没有明显变化, 扭矩系数曲线负斜率的绝对值减小; 扰流防舞器具有防舞作用。

关键词: 舞动, 计算流体动力学, 扰流防舞器, 防舞, 覆冰导线

Abstract: The impact of the air flow spoiler on the aerodynamic characteristics of iced transmission lines and its effects of anti—galloping were researched.The aerodynamic characteristics curves of the crescent iced transmis. sion line were simulated by the method of Computational Fluid Dynanlics(CFD).The average aerodynamic charac. teristics curves of eight equal sections in a circular pitch of the crescent iced transmission line installed with the air spoiler were simulated.The results show that the drag coefficient of the crescent iced transmission line installed with air flow spoiler is larger than the crescent iced transmission line.The lift coefficient curve doesn't change much.The absolute value of negative slope of torsion coefficient curve decreases.The air flow spoiler is useful for preventing galloping.

Key words: galloping, CFD, air flow spoiler, anti-galloping, iced transmission lines

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扰流防舞器气动力特性数值模拟

Simulation of Aerodynamic Characteristics of Air Flow Spoiler

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