A Level Set-Based Actuator Disc Model for Turbine Realignment in Wind Farm Simulation: Meshing, Convergence and Applications

Abel Gargallo-Peiró (), Gonzalo Revilla, Matias Avila and Guillaume Houzeaux
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Abel Gargallo-Peiró: Department of Computer Applications in Science and Engineering, Barcelona Supercomputing Center (BSC-CNS), 08034 Barcelona, Spain
Gonzalo Revilla: Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain
Matias Avila: Department of Computer Applications in Science and Engineering, Barcelona Supercomputing Center (BSC-CNS), 08034 Barcelona, Spain
Guillaume Houzeaux: Department of Computer Applications in Science and Engineering, Barcelona Supercomputing Center (BSC-CNS), 08034 Barcelona, Spain

Energies, 2022, vol. 15, issue 23, 1-24

Abstract: We present a novel meshing and simulation approach for wind farms, featuring realignment and mesh adaptation. The turbines are modeled with actuator discs, which are discretized by means of an adaptation process to represent a level set function. The level-set-based simulation framework is combined with an adaptation cycle to capture both the solution and the actuator discs. In addition, we devise a turbine realignment process which takes into account the actual flow in the actuator disc configuration. Several results are presented to highlight the features of the approach. First, the adaptive simulation approach is validated, fulfilling the theoretical convergence rates and improving the accuracy of the boundary tight representations. Second, the adaptive simulation process is applied to a full wind farm configuration featuring 219 turbines, illustrating that is it well devised for complex wind farm configurations. Third, the turbine reorientation process is validated in a one turbine scenario. Finally, the realignment simulation framework is applied in a wind farm featuring 115 turbines. The presented results outline the significance of the proposed work, enabling turbine realignment and mesh adaptation to perform accurate simulations of complex wind farm configurations.

Keywords: wind farms; actuator disc; level set; adaptation; mesh generation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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