Defining wake characteristics from scanning and vertical full- scale lidar measurements

The Science of Making Torque from Wind

Barthelmie, R.J.^1 ; Doubrawa, P.^1 ; Wang, H.^1 ; Pryor, S.C.^2

Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca

NY

14853, United States^1

Department of Earth and Atmospheric Sciences, Cornell University, Ithaca

NY

14853, United States^2

关键词: Doppler lidars;    Field experiment;    Lidar measurements;    Prince edward islands;    Temporal coverage;    Velocity deficits;    Wake widths;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/3/032034/pdf
DOI  :  10.1088/1742-6596/753/3/032034

来源: IOP

【 摘 要 】

This paper describes the use of lidar to capture full-scale wake characteristics. Measuring wake characteristics such as velocity deficit, wake width and asymmetry as well as wake meander with scanning Doppler lidar requires an efficient scan geometry in which wake volumes are comprehensively scanned while 'empty' volumes are excluded and also requires optimization for maximum spatial and temporal coverage. Some examples are given from a field experiment in Prince Edward Island in 2015 that show wake characterization from both scanning and vertical lidar.