1 Department of Civil Engineering, Technical University of Denmark2 Section for Structural Engineering, Department of Civil Engineering, Technical University of Denmark3 University of Naples Federico II4 Mediterranea University of Reggio Calabria
In this paper, the effects of ice accretion due to in-cloud icing on the aerodynamics of vertical circular cylinders is examined. Aerodynamic force coefficients with varying angle of attack were found, as a function of the wind speed; ice accretions deriving from different flow velocities and temperatures are considered. The tested cylinder is a specimen of a HDPE tube used for bridge hanger protection. The wind tunnel tests shall serve as a reference, and the results can be used for the evaluation of possible aerodynamic instability phenomena. A preliminary evaluation of possible galloping instability regions is made using the Den Hartog criterion. A short description of the accretion is given as well. A parallel paper deals with the case of circular cylinders in inclined flow.
Proceedings of the 6th European and African Wind Engineering Conference, 2013
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6th European and African Wind Engineering Conference, 2013