Towards physics-based operational modeling of the unsteady wind turbine response to atmospheric and wake-induced turbulence
(2017) Wake Conference 2017 — Location: Uppsala University’s Gotland CampusVisby, Sweden (30.May.2017)
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- Abstract
- 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.
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Marichal, Y., De Visscher, I., Chatelain, P., & Winckelmans, G. (2017). Towards physics-based operational modeling of the unsteady wind turbine response to atmospheric and wake-induced turbulence. Journal of Physics: Conference Series, 854(1), 12030. https://doi.org/10.1088/1742-6596/854/1/012030 (Original work published 2017)