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.

引用

页数：9

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