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Three-Dimensional Wind Correlation: Estimations from In Situ Measurements
The correlation properties of the wind (expressed as wind coherence in frequency domain representation) are important for precise prediction of response to wind for flexible, line-like structures such as long-span bridges, telecommunication towers, wind turbine towers and transmission lines. Although extensive research including field measurements has been carried out in the past, there is still a lack of data that defines complete correlation between the components of wind turbulence. Whereas correlations in the along-wind mean direction are more or less clearly understood and well defined, there is a certain shortage of full scale data in the cross-properties among along-, vertical- and across-wind directions. It is therefore desirable to obtain more information related to these important wind parameters based on field measurements. The objective of this paper is to provide more information on this subject based on two in-situ wind measurements. One set of data was obtained during the measurements undertaken for the New Cooper River Bridge, Charleston, South Carolina. The second set is the wind measured on the experimental line of Hydro-Québec Research Institute (IREQ). The first site is characterized by open water for wind directions normal to the bridge crossing, i.e., close to south and north winds, whereas the second site was an open terrain.
Three-Dimensional Wind Correlation: Estimations from In Situ Measurements
The correlation properties of the wind (expressed as wind coherence in frequency domain representation) are important for precise prediction of response to wind for flexible, line-like structures such as long-span bridges, telecommunication towers, wind turbine towers and transmission lines. Although extensive research including field measurements has been carried out in the past, there is still a lack of data that defines complete correlation between the components of wind turbulence. Whereas correlations in the along-wind mean direction are more or less clearly understood and well defined, there is a certain shortage of full scale data in the cross-properties among along-, vertical- and across-wind directions. It is therefore desirable to obtain more information related to these important wind parameters based on field measurements. The objective of this paper is to provide more information on this subject based on two in-situ wind measurements. One set of data was obtained during the measurements undertaken for the New Cooper River Bridge, Charleston, South Carolina. The second set is the wind measured on the experimental line of Hydro-Québec Research Institute (IREQ). The first site is characterized by open water for wind directions normal to the bridge crossing, i.e., close to south and north winds, whereas the second site was an open terrain.
Three-Dimensional Wind Correlation: Estimations from In Situ Measurements
Gani, Ferawati (author) / Parent, Louis-Philippe (author) / Légeron, Frédéric (author) / Stoyanoff, Stoyan (author) / Van Dyke, Pierre (author)
Structures Congress 2009 ; 2009 ; Austin, Texas, United States
Structures Congress 2009 ; 1-10
2009-04-29
Conference paper
Electronic Resource
English
Three-Dimensional Wind Correlation: Estimations from In-Situ Measurements
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