Influence of small-scale turbulence on cup anemometer calibrations

被引：2
|
作者：
Marraccini, M. [1 ]
Bak-Kristensen, K. [1 ]
Horn, A. [2 ]
Fifield, E. [2 ]
Hansen, S. O. [2 ]
机构：
[1] Svend Ole Hansen ApS, Copenhagen, Denmark
[2] SOH Wind Engn LLC, Williston, VT USA
来源：
WINDEUROPE CONFERENCE & EXHIBITION 2017 | 2017年 / 926卷
关键词：
D O I：
10.1088/1742-6596/926/1/012005
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The paper presents and discusses the calibration results of cup anemometers under different levels of small-scale turbulence. Small-scale turbulence is known to govern the curvature of shear layers around structures and is not related to the traditional under and over speeding of cup anemometers originating from large-scale turbulence components. The paper has shown that the small-scale turbulence has a significant effect on the calibration results obtained for cup anemometers. At 10 m/s the rotational speed seems to change by approx. 0.5% due to different simulations of the small-scale turbulence. The work which this paper is based on, is part of the TrueWind research project, aiming to increase accuracy of mast top-mounted cup anemometer measurements.
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页数：9
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