Research of the Nonlinear Wake Model of HAWT
Yang, Rui; Zhang, Shenglong; Wang, Jiuxin
2014
Source PublicationRENEWABLE ENERGY AND ENVIRONMENTAL TECHNOLOGY, PTS 1-6
Volume448-453
Pages1747-1753
Publication PlaceKREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
PublisherTRANS TECH PUBLICATIONS LTD
AbstractIn the existing linear wake (cylindrical surface) model of horizontal axis wind turbines, the rotor was taken as the actuator-disc composed of infinite blades with infinitesimal chords. The distribution of variable circulation along blade was not taken into account and the span-wise (or radial) component of induced velocity is totally ignored. And assumed that the all trailing vortex filament shed from blade trailing edge would locate on their own cylindrical stream-surface. This aerodynamic model for determination of wake configuration is obviously different from that actually observed wake in wind tunnel experiment. Therefore, a "nonlinear" wake model was proposed, in this model the wake vortex system was divided into the central vortex along rotor axis, the bound vortex along blade axis, the wake vortex sheets shed from blade trailing edge and extent into infinity behind the rotor. Then, on the basis of potential theory in fluid mechanics a set of integral equations for evaluation of induced velocity in wake were derived with Biot-Savart's formula.
KeywordHorizontal Axis Wind Turbines Wake Model Wake Vortex System Induced Velocity Integral Equations
DOI10.4028/www.scientific.net/AMM.448-453.1747
Indexed ByCPCI
Language英语
WOS Research AreaEnergy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS SubjectEnergy & Fuels ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000338796300331
Document Type会议论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64336
Collection兰石研究院(新区研究院)
能源与动力工程学院
Corresponding AuthorYang, Rui
AffiliationLanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou, Peoples R China
First Author AffilicationColl Energy & Power Engn
Corresponding Author AffilicationColl Energy & Power Engn
Recommended Citation
GB/T 7714
Yang, Rui,Zhang, Shenglong,Wang, Jiuxin. Research of the Nonlinear Wake Model of HAWT[C]. KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND:TRANS TECH PUBLICATIONS LTD,2014:1747-1753.
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