Turbulence characteristics in wind-turbine wakes

被引：261

作者：

Crespo, A ^{[1
]}

Hernandez, J ^{[1
]}

机构：

[1] Univ Nacl Educ Distancia, ETS INGENIEROS IND, MADRID, SPAIN

来源：

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 1996年 / 61卷 / 01期

关键词：

This work has been supported by the CEC through contracts JOUR-0087 of the JOULE programme; and JOU2-CT93-0350 of the JOULE II programme;

D O I：

10.1016/0167-6105(95)00033-X

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An analysis of the evolution of turbulence characteristics in wind-turbine wakes has been carried out. Based on experimental results and on numerical results obtained with a CFD code, complemented with some theoretical considerations, simple analytical expressions are proposed for the estimation of the turbulent kinetic energy, k, and its dissipation rate, epsilon. To obtain the turbulence spectra in the wake a classical law used for atmospheric turbulence is assumed, in which characteristic values of turbulence velocity and turbulence length are calculated by algebraic combinations of k and epsilon, so that when the effect of the wake is negligible the spectrum of the unperturbed basic flow is recovered.

引用

页码：71 / 85

页数：15

共 34 条

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