Numerical Simulation and Analysis of External Flow Field around Transmission Line under Icing Condition

doi:10.3969/j.issn.1000－7229.2014.05.002

Abstract

Abstract:

The external flow field around transmission line under icing conditions was studied with using fluid numerical simulation software FLUENT based on finite volume method. The distribution characteristics of velocity field, temperature field and pressure field of the airflow around transmission line were analyzed. Then, the effects of wind speed, environment temperature, wire surface temperature, and wire radius on velocity field, temperature field and pressure field were researched. In fact, the windward of the transmission line is easy to freeze and the leeward of the transmission line is hard to freeze. The comprehensive analysis of the distribution characteristics of velocity field, temperature field and pressure field reveals the reason and mechanism of uneven distributed icing on the transmission line. And the analysis of the relevant parameters in icing shows why the wire with smaller radius is more easily covered in ice.

Key words: transmission line, icing, external flow field, airflow field, numerical simulation, FLUENT, uneven distributed icing

HUANG Xinbo, LIN Shufan, ZHU Yongcan, WANG Yuxin, SONG Tong. Numerical Simulation and Analysis of External Flow Field around Transmission Line under Icing Condition[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(5): 6-12.

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Numerical Simulation and Analysis of External Flow Field around Transmission Line under Icing Condition

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