Wind Farm Simulations Using an Overset hp-Adaptive Approach with Blade-Resolved Turbine Models

摘要

Blade-resolved numerical simulations of wind energy applications using full blade and tower models are presented. The computational methodology combines solution technologies in a multi-mesh, multi-solver paradigm through a dynamic overset framework. The coupling of a finite-volume solver and a high-order, hp-adaptive finite-element solver is utilized. Additional technologies including in-situ visualization and atmospheric micro-scale modeling are incorporated into the analysis environment. Validation of the computational framework is performed on the NREL 5MW baseline wind turbine, the unsteady aerodynamics experimental NREL Phase VI turbine, and the Siemens SWT-2.3-93 wind turbine. The power and thrust results of all single turbine simulations agree well with low-fidelity model simulation results and field experiments when available. Scalability of the computational framework is demonstrated using 6, 12, 24, 48, and 96 wind turbine wind plant set-ups including the 48 turbine wind plant known as Lillgrund. Demonstration of the coupling of atmospheric micro-scale and CFD solvers is presented using the NCAR WRF solver and the NREL SOWFA solver. Comprehensive validation with measurements will be the focus of future research of the computational framework.