Calculation of Turbulence intensity at hub height on flat topography by 『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』

Calculation of Turbulence intensity at hub height on flat topography by 『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』

1Hub height:Hh(m)0≦Hh≦550
2Graph -
3Plot Input Data -
4Number of gridlines of Graph x-axis, y-axis -
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Keyword・Reference・Remarks・History

LaTex

Keyword

Turbulence intensity at hub height on flat topography

Reference

[1]:Edited by Takeshi ISHIHARA:『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』、Task Committee on Dynamic Analysis and Structural Design of Wind Turbine,Committee of Structural Engineering,Japan Society of Civil Engineers、pp.68-71
[2]:中原 満雄・斎藤 錬一:『再現期間 50 年の年最大風速分布図について』,日本建築学会論文報告集 (125), 1-7, 65, 1966-07-30

Remarks

・Turbulence intensity at hub height:Ih1
・Topographic multiplier for turbulence intensity:EtI
・Turbulence intensity at hub height on flat topography:Ip
・Hub height:Hh(m)
・Parameter for calculation of Altitude Correction Coefficient for mean wind speed:Zb,ZG,a

Roughness Class

Zb(m)

5 5 10 10

ZG(m)

250 350 450 550

a

0.1 0.15 0.2 0.27

Roughness Class

Condition of surface around site

・Area with few obstacles like sea surface or lake surface.
・Area with obstacle like farm products such as agricultural area and meadow.
・Area where tree and low layer building, etc. lie scattered.
・Area where a lot of trees and low layer buildings, etc. exist.
・Area where medium layer building becomes main.
・Making Equation Image is powered by CODECOGS

History

・2011/05/27:Modification about symbol
・2011/05/21:Upload

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