FAST.Farm Response to Varying Wind Inflow and Discretization
FAST.Farm is a newly developed multiphysics, midfidelity engineering tool that can be used to predict turbine power and structural loads of wind turbines in a wind farm. Previous studies have shown the similarities and differences between FAST.Farm and large-eddy simulations (LES) using the same LES-precursor-generated ambient wind inflow. The ability to generate ambient wind inflow using a synthetic turbulence engineering model (e.g., TurbSim or the Mann model) has recently been integrated into FAST.Farm to potentially enable more computationally efficient usage of the tool. This work aims to: 1) compare FAST.Farm simulations using LES-generated inflow to those using synthetically generated inflow from TurbSim, and 2) establish guidelines by which TurbSim-generated inflow should be generated for wind farm analysis. It was found that properly setting spatial coherence parameters for the transverse wind velocity components is necessary to accurately predict wake meandering. It is shown that TurbSim-generated inflow can be used in FAST.Farm to accurately predict thrust, power, speed, and torque for waked and unwaked turbines; wake meandering behavior across different atmospheric conditions; and averaged wake-deficit advection and evolution effects.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1547244
- Report Number(s):
- NREL/CP-5000-74501
- Resource Relation:
- Conference: Presented at the AIAA SciTech 2019 Forum, 7-11 January 2019, San Diego, California
- Country of Publication:
- United States
- Language:
- English
Validation of FAST.Farm Against Large-Eddy Simulations
|
journal | June 2018 |
Wake meandering: a pragmatic approach
|
journal | July 2008 |
Development of FAST.Farm: A New Multi-Physics Engineering Tool for Wind-Farm Design and Analysis
|
conference | January 2017 |
A Large-Eddy Simulations of Wind-Plant Aerodynamics
|
conference | November 2012 |
| Definition of a 5-MW Reference Wind Turbine for Offshore System Development | report | February 2009 |
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Effects of Inflow Spatiotemporal Discretization on Wake Meandering and Turbine Structural Response using FAST.Farm
Validation of FAST.Farm Against Large-Eddy Simulations