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The effect of surface strands, angle of attack, and ice accretion on the flow field around electrical power cables

Zdero, Rad and Turan, Ozden (2010) The effect of surface strands, angle of attack, and ice accretion on the flow field around electrical power cables. Journal of Wind Engineering and Industrial Aerodynamics, 98 (10-11). pp. 672-678. ISSN 0167-6105

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Abstract

The influence of surface strands, angle of attack, and ice accumulation on the flow field around electrical power cables of various geometries is not clearly understood. The purpose of this study was to examine the effect of these factors on the near wake flow field of three stationary wind tunnel models, namely, Model 1 (smooth and heavily iced), Model 2 (stranded and lightly iced), and Model 3 (stranded and heavily iced). Some angles of attack, θ, significantly altered the flow field by encouraging a rise in Strouhal number for all models at θ=0°, for Model 2 at θ=150–160°, and for Model 3 at θ=180°. Under certain conditions (θ=0°, U >22 m/s, Re>42,000) for Model 3, dual vortex shedding frequency peaks were present. These changes in Strouhal number may potentially predispose models to low drag and high lift forces.

Item Type: Article
Uncontrolled Keywords: ResPubID19820, power transmission cables, surface strands, angle of attack, ice accretion, flow field
Subjects: Faculty/School/Research Centre/Department > Institute for Sustainability and Innovation (ISI)
FOR Classification > 0913 Mechanical Engineering
SEO Classification > 970109 Expanding Knowledge in Engineering
Depositing User: VUIR
Date Deposited: 15 Jun 2012 03:32
Last Modified: 20 Jun 2012 04:36
URI: http://vuir.vu.edu.au/id/eprint/7366
DOI: 10.1016/j.jweia.2010.04.005
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Citations in Scopus: 1 - View on Scopus

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