Rafael Mudafort
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View article: A dynamic open-source model to investigate wake dynamics in response to wind farm flow control strategies
A dynamic open-source model to investigate wake dynamics in response to wind farm flow control strategies Open
Wind farm flow control (WFFC) is the discipline of manipulating the flow between wind turbines to achieve a farm-wide goal, like power maximization, power tracking or load mitigation. Specifically, steady-state control approaches have show…
View article: Load assessment of a wind farm considering negative and positive yaw misalignment for wake steering
Load assessment of a wind farm considering negative and positive yaw misalignment for wake steering Open
Wake steering strategies are employed to increase the overall power production of wind farms by deflecting wakes of upstream turbines away from downstream ones. The gain in net power comes at the expense of increased fatigue loads experien…
View article: A dynamic open-source model to investigate wake dynamics in response to wind farm flow control strategies
A dynamic open-source model to investigate wake dynamics in response to wind farm flow control strategies Open
Wind Farm Flow Control (WFFC) is the discipline of manipulating the flow between wind turbines to achieve a farm-wide goal, like power tracking, load mitigation, or power maximization. Specifically, steady-state control approaches have sho…
View article: WETO Software Stack Best Practices
WETO Software Stack Best Practices Open
Wind energy researchers typically share one key characteristic: a passion for increasing wind energy in the global energy mix. The U.S. Department of Energy (DOE) supports this mission in a number of ways including allocating funding direc…
View article: Comparison of steady-state analytical wake models implemented in wind farm analysis software
Comparison of steady-state analytical wake models implemented in wind farm analysis software Open
A common set of mathematical wind turbine wake models are implemented in a few, well-adopted computational tools for wind farm wake modelling. Although the referenced mathematical formulations are common, implementation details may lead to…
View article: Comment on wes-2024-6
Comment on wes-2024-6 Open
Abstract. Wake steering strategies are employed to increase the overall power production of wind farms by deflecting wakes of upstream turbines away from downstream ones. The gain in net power comes at the expense of increased fatigue load…
View article: Comment on wes-2024-6
Comment on wes-2024-6 Open
Abstract. Wake steering strategies are employed to increase the overall power production of wind farms by deflecting wakes of upstream turbines away from downstream ones. The gain in net power comes at the expense of increased fatigue load…
View article: Load assessment of a wind farm considering negative and positive yaw misalignment for wake steering
Load assessment of a wind farm considering negative and positive yaw misalignment for wake steering Open
Wake steering strategies are employed to increase the overall power production of wind farms by deflecting wakes of upstream turbines away from downstream ones. The gain in net power comes at the expense of increased fatigue loads experien…
View article: Ard [SWR-25-18]
Ard [SWR-25-18] Open
A wind farm optimization suite for wind energy that is built for modular, gradient-enabled multi-disciplinary and multi-fidelity optimizations. Dig into wind farm design. An ard is a type of simple and lightweight plow, used through the si…
View article: Addressing deep array effects and impacts to wake steering with the cumulative-curl wake model
Addressing deep array effects and impacts to wake steering with the cumulative-curl wake model Open
Wind farm design and analysis heavily rely on computationally efficient engineering models that are evaluated many times to find an optimal solution. A recent article compared the state-of-the-art Gauss-curl hybrid (GCH) model to historica…
View article: FLORIS v3.5 Wake Modeling and Wind Farm Controls Software [SWR-17-43 and SWR-14-20]
FLORIS v3.5 Wake Modeling and Wind Farm Controls Software [SWR-17-43 and SWR-14-20] Open
FLORIS is a controls-focused wind farm simulation software incorporating steady-state engineering wake models into a performance-focused Python framework. It has been in active development at NREL since 2013 and the latest release is FLORI…
View article: Wcomp (Wind Farm Wake Comparison Framework) [SWR-23-72]
Wcomp (Wind Farm Wake Comparison Framework) [SWR-23-72] Open
The Wind Farm Wake Comparison Framework (Wcomp) is a software tool to facilitate the comparison of a specific collection of wind farm wake modeling tools: Python-based, steady-state, analytical wake modeling utilities. Wcomp integrates ano…
View article: Giving RSEs a Larger Stage through the Better Scientific Software Fellowship
Giving RSEs a Larger Stage through the Better Scientific Software Fellowship Open
The Better Scientific Software Fellowship (BSSwF) was launched in 2018 to foster and promote practices, processes, and tools to improve developer productivity and software sustainability of scientific codes. BSSwF's vision is to grow the c…
View article: Giving Research Software Engineers a Larger Stage Through the Better Scientific Software Fellowship
Giving Research Software Engineers a Larger Stage Through the Better Scientific Software Fellowship Open
The Better Scientific Software Fellowship (BSSwF) was launched in 2018 to foster and promote practices, processes, and tools to improve developer productivity and software sustainability of scientific codes. The BSSwF’s vision is to grow t…
View article: Serial-Refine Method for Fast Wake-Steering Yaw Optimization
Serial-Refine Method for Fast Wake-Steering Yaw Optimization Open
In this paper we present the Serial-Refine method for quickly finding the optimal yaw angles in wake steering. The method optimizes turbine angles serially from upstream to downstream using a small number of candidate angles. The presented…
View article: Fast yaw optimization for wind plant wake steering using Boolean yaw angles
Fast yaw optimization for wind plant wake steering using Boolean yaw angles Open
In wind plants, turbines can be yawed into the wind to steer their wakes away from downstream turbines and achieve an overall increase in plant power. Mathematical optimization is typically used to determine the best yaw angles at which to…
View article: Comment on wes-2022-17
Comment on wes-2022-17 Open
Wind farm design and analysis heavily rely on computationally efficient engineering models that are evaluated many times to find an optimal solution. A recent article compared the state-of-the-art Gauss-curl hybrid (GCH) model to historica…
View article: Addressing deep array effects and impacts to wake steering with the cumulative-curl wake model
Addressing deep array effects and impacts to wake steering with the cumulative-curl wake model Open
Wind farm design and analysis heavily rely on computationally efficient engineering models that are evaluated many times to find an optimal solution. A recent article compared the state-of-the-art Gauss-curl hybrid (GCH) model to historica…
View article: Comment on wes-2021-108
Comment on wes-2021-108 Open
Abstract. In wind plants, turbines can be yawed into the wind to steer their wakes away from downstream turbines and achieve an overall increase in plant power. Mathematical optimization is typically used to determine the best yaw angles a…
View article: OpenTurbine [SWR-23-07]
OpenTurbine [SWR-23-07] Open
OpenTurbine is an open-source code designed for the simulation of wind turbine structural dynamics. It is a flexible multi-body dynamics solver wherein the wind turbine is modeled as a collection of beam finite elements, rigid bodies, and …
View article: Comment on wes-2021-108
Comment on wes-2021-108 Open
Abstract. In wind plants, turbines can be yawed into the wind to steer their wakes away from downstream turbines and achieve an overall increase in plant power. Mathematical optimization is typically used to determine the best yaw angles a…
View article: Fast Yaw Optimization for Wind Plant Wake Steering Using Boolean Yaw Angles
Fast Yaw Optimization for Wind Plant Wake Steering Using Boolean Yaw Angles Open
In wind plants, turbines can be yawed into the wind to steer their wakes away from downstream turbines and achieve an overall increase in plant power. Mathematical optimization is typically used to determine the best yaw angles at which to…
View article: Airborne Wind Energy
Airborne Wind Energy Open
Airborne wind energy (AWE) is “the conversion of wind energy into electricity using tethered flying devices”. Pursuit of AWE and airborne wind energy systems began in 1980. Interest and investment in AWE have grown substantially in the las…
View article: NREL. Airborne Wind Energy
NREL. Airborne Wind Energy Open
Airborne wind energy (AWE) is “the conversion of wind energy into electricity using tethered flying devices” (Schmehl 2020.) Pursuit of AWE and airborne wind energy systems began in 1980 (Loyd 1980). Interest and investment in AWE have gro…
View article: NREL/floris: v2.4
NREL/floris: v2.4 Open
New Features 209 Add yaw added recovery feature to Gauss wake model 203 Add black and white option to layout 202 Add cut plane functionality 164 Update Blondel model Bug fixes and improvements 230 Infrastructure improvements - docs and tes…
View article: Design and analysis of a wake model for spatially heterogeneous flow
Design and analysis of a wake model for spatially heterogeneous flow Open
Methods of turbine wake modeling are being developed to more accurately account for spatially variant atmospheric conditions within wind farms. Most current wake modeling utilities are designed to apply a uniform flow field to the entire d…
View article: Control-oriented model for secondary effects of wake steering
Control-oriented model for secondary effects of wake steering Open
This paper presents a model to incorporate the secondary effects of wake steering in large arrays of turbines. Previous models have focused on the aerodynamic interaction of wake steering between two turbines. The model proposed in this pa…
View article: Evaluation of the potential for wake steering for U.S. land-based wind power plants
Evaluation of the potential for wake steering for U.S. land-based wind power plants Open
The wind power plant-wide control strategy known as wake steering involves the misalignment of upstream turbines with the wind direction to deflect wakes away from downstream turbines, increasing net wind plant power production. In this pa…
View article: The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows
The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows Open
Wind turbine wake models typically require approximations, such as wake superposition and deflection models, to accurately describe wake physics. However, capturing the phenomena of interest, such as the curled wake and interaction of mult…
View article: Overview of FLORIS updates
Overview of FLORIS updates Open
In this paper, we review updates made to the FLORIS (FLOw Redirection and Induction in Steady State) open-source framework for wind farm control modeling, design and analysis. The updates are focused on improvements for large arrays of tur…