Towards physics-based operational modeling of the unsteady wind turbine response to atmospheric and wake-induced turbulence

Wake Conference 2017

Marichal, Y.^1 ; De Visscher, I.^1 ; Chatelain, P.^1,2 ; Winckelmans, G.^1,2

WaPT, Wake Prediction Technologies, Rue Louis de Geer 6, Louvain-la-Neuve

1348, Belgium^1

Institute of Mechanics, Materials and Civil Engineering, Université Catholique de Louvain, Louvain-la-Neuve

1348, Belgium^2

关键词: Evolution equations;    Flow Phenomena;    Operational model;    Physically based;    Turbulent diffusion;    Vortex particles;    Wind conditions;    Wind turbine power;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/854/1/012030/pdf
DOI  :  10.1088/1742-6596/854/1/012030

来源: IOP

【 摘 要 】

The objective of the present work is to develop a tool able to predict, in a computationally affordable way, the unsteady wind turbine power production and loads as well as its wake dynamics, as a function of the turbine dynamics and incoming wind conditions. Based on the lessons learned from a previous study about the characterization of the unsteady wake dynamics, the framework for an operational wake model is presented. The approach relies on an underlying vorticity-based skeleton consisting of different components, such as a regularized Vortex Sheet Tube (VST) and Vortex Dipole Line (VDL). Physically based evolution equations, accounting for the various flow phenomena occurring in the wake (such as advection, turbulent diffusion/core spreading, source/sink terms, etc.), are then derived. Once calibrated, the wake model is shown to be in good agreement with results of high-fidelity Large Eddy Simulations (LES) obtained using an Immersed Lifting Line-enabled Vortex Particle-Mesh method.