Simulation of Aerodynamic Characteristics of Air Flow Spoiler

Sun Zhenmao; Lou Wenjuan

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

2009, 1(1): 67-71.

Simulation of Aerodynamic Characteristics of Air Flow Spoiler

Sun Zhenmao , Lou Wenjuan

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

Web Publishing Date: 2009-09-01

Fund Project: 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)

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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