Aerodynamic and aeroelastic wind tunnel model tests of overhead power lines in triangular configuration under different icing conditions
Authors:
- Andrzej Flaga,
- Aleksander Pistol,
- Piotr Krajewski,
- Łukasz Flaga
Abstract
This paper describes the experimental model tests conducted in the boundary layer wind tunnel of the Wind Engineering Laboratory of Cracow University of Technology. The tests were focused on overhead power line conductors arranged in triangular bundles under different types of icing. Five representative cases of snow, ice and rime/frost loads were assumed on the basis of examples defined in literature and field studies. A dimensional analysis was conducted for the case studies. The experimental model tests were conducted in two independent series. Each series required sectional models of different features. The results of the first series were in the form of mean aerodynamic coefficients Cx, Cz and Cm for selected cases of snow, ice and rime/frost conductors covers. On this basis, aerodynamic interferences of overhead line conductors were determined. The model tests were performed on a rigid sectional model of conductors. The second series was aimed at the identification of aeroelastic phenomena caused by interference of the conductors. As a result, the critical velocity of conductors galloping and wake galloping for selected cases of snow, ice and rime/frost covers was determined. For this series of tests, a sectional aeroelastic model (rigid sectional model of each cable with flexible supports at the ends) of the three-cable bundled conductors was made.
- Record ID
- CUT4b283fdcba8b4aa6856a4fb9a39a88d1
- Publication categories
- ;
- Author
- Journal series
- Cold Regions Science and Technology, ISSN 0165-232X, e-ISSN 1872-7441
- Issue year
- 2020
- Vol
- 170
- Pages
- [1-15]
- Article number
- 102919
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 14-15; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2019-10-31; Numeracja w czasopiśmie - Vol. 170
- Keywords in English
- experimental tests, snow/ice/rime/frost load, cable icing, wind engineering, aeroelastic model, overhead power lines, cable bundle, similarity criteria, wind tunnel tests
- DOI
- DOI:10.1016/j.coldregions.2019.102919 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0165232X1930268X Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT4b283fdcba8b4aa6856a4fb9a39a88d1/
- URN
urn:pkr-prod:CUT4b283fdcba8b4aa6856a4fb9a39a88d1
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.