Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors
Joint Authors
Cai, Mengqi
Zhou, Linshu
Lei, Hang
Huang, Hanjie
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Iced conductor motion is induced by the aerodynamic instability of these conductors.
The unsteady aerodynamic characteristics are different from the steady aerodynamic characteristics.
The unsteady aerodynamic coefficients of typical iced conductors’ models under torsional motion are measured by the unsteady wind tunnel test.
The unsteady aerodynamic coefficients of crescent-shape and sector-shape iced 4-bundle conductors under different torsional motion frequencies, wind velocities, and ice thicknesses are obtained.
Wind test results show that there are significant differences between the unsteady and steady aerodynamic coefficients.
The unsteady aerodynamic coefficients curve is a loop which is different from the steady aerodynamic coefficients.
In addition, the obvious differences exist between unsteady aerodynamic coefficients of crescent-shape and sector-shape iced bundle conductors.
Critical parameters, including torsional motion frequencies, wind velocity, ice shape, and ice thickness, have significant influences on unsteady aerodynamic coefficients.
It shows that the wind tunnel experiment results are able to provide necessary data for the investigation of iced bundle conductor motion and their prevention techniques.
American Psychological Association (APA)
Cai, Mengqi& Zhou, Linshu& Lei, Hang& Huang, Hanjie. 2019. Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1115827
Modern Language Association (MLA)
Cai, Mengqi…[et al.]. Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors. Advances in Civil Engineering No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1115827
American Medical Association (AMA)
Cai, Mengqi& Zhou, Linshu& Lei, Hang& Huang, Hanjie. Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1115827
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1115827