Numerical investigation on aerodynamic coefficients of iced quad bundle conductor

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (5) : 132-137.

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Numerical investigation on aerodynamic coefficients of iced quad bundle conductor

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

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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.

Key words

Iced quad bundle conductor / aerodynamic coefficients / numerical simulation / galloping characteristics

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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