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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51981

Title: Velocity Spectra and Turbulence Statistics at the Northeastern Coast of Taiwan under High-wind Condition
Authors: Bao-Shi Shiau
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Wind spectra
Turbulence statistics
Ultra-sonic anemometer
Reynolds stress
Quadrant analysis
Ejection
Sweep
Date: 2000-12
Issue Date: 2019-01-10T03:19:58Z
Publisher: Journal of Wind Engineering and Industrial Aerodynamics
Abstract: Abstract: In this paper, in situ observation and measurement of strong wind (typhoon) in the northeastern coast of Taiwan was conducted. By employing a three-axis ultra-sonic anemometer, the wind velocity and temperature time series data on a typhoon day were measured. The recorded digital data were analyzed to yield the velocity spectra and their turbulence statistics under high-wind conditions. Results show that the observed longitudinal turbulent velocity spectrum is in good agreement with the von Karman spectrum equation. Lateral turbulent velocity spectrum is also compared with the isotropic turbulence spectrum equation. The characteristics of integral scales are compared with the isotropic turbulence results, and other published field data. The contributions to the Reynolds stress of strong wind made by the four quadrant events are analyzed and discussed.
Relation: 88(2-3) pp.139-151
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51981
Appears in Collections:[河海工程學系] 期刊論文

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