Abstract
Previously reported wind tunnel dynamic tests on spring-supported models of transmission line conductors with crescent-shaped accumulations of ice, showed that the galloping instability of these models was significantly affected by turbulence in the air flow. The static aerodynamic coefficients of these models have now been determined in turbulent air flow, and a theoretical prediction made of the galloping instability. Good agreement has been obtained between this predicted performance and the previous dynamic tests. The method used for the prediction, and typical experimental data are presented in this paper.
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