Journal article
Development and validation of a new two-dimensional wake model for wind turbine wakes
A new two-dimensional (2D) wake model is developed and validated in this article to predict the velocity and turbulence distribution in the wake of a wind turbine. Based on the classical Jensen wake model, this model is further employing a cosine shape function to redistribute the spread of the wake deficit in the crosswind direction.
Moreover, a variable wake decay rate is proposed to take into account both the ambient turbulence and the rotor generated turbulence, different from a constant wake decay rate used in the Jensen model. The obtained results are compared to field measurements, wind tunnel experiments, and results of an advanced k-ω turbulence model as well as large eddy simulations.
From the comparisons, it is found that the proposed new wake model gives a good prediction in terms of both shape and velocity amplitude of the wake deficit, especially in the far wake which is the region of interest for wind farm development projects.
| Language: | English |
|---|---|
| Year: | 2015 |
| Pages: | 90-99 |
| ISSN: | 18728197 and 01676105 |
| Types: | Journal article |
| DOI: | 10.1016/j.jweia.2014.12.001 |
| ORCIDs: | Shen, Wen Zhong |
Decay (organic) Decay constants Electric utilities Image segmentation Jensen wake model Large eddy simulation Turbulence models Variable wake decay constant Velocity deficit Velocity deficits Wake model Wakes Wind farm development Wind farm development projects Wind power Wind tunnels Wind turbine wakes Wind turbines
