Exawind/openturbine
Jan 2025 – Dec 2025
8 Months active
Languages Used
C++CMakeYAMLPython
Technical Skills
API DesignC++CFDCFD IntegrationCFD SimulationCMake
Derek Slaughter
PROFILE
Derek Slaughter
Derek Slaughter developed core wind turbine simulation capabilities in the Exawind/openturbine repository, focusing on robust feature delivery and code quality. He built and integrated turbine and blade interfaces, advanced aerodynamic and tower modeling, and implemented control system enhancements using C++ and Python. Derek refactored data handling to use YAML, improved numerical accuracy, and expanded test coverage with unit and regression tests. His work included CFD and OpenFAST integration, data preprocessing for aerodynamic interpolation, and rigorous error handling. These contributions enabled more reliable, maintainable simulations and accelerated design iteration, supporting high-fidelity wind turbine analysis and scalable, production-ready workflows.
Overall Statistics
Feature vs Bugs
87%Features
Repository Contributions
71Total
Bugs
3
Commits
71
Features
20
Lines of code
281,179
Activity Months8
Your Network
5 people
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025Concise monthly summary for 2025-12 focusing on business value and technical achievements. Highlights include delivering a new turbine interface capability for tower aerodynamics, updating tests and documentation, and validating impact on simulation accuracy and generator efficiency.
1 Commits • 1 Features
Dec 1, 2025Concise monthly summary for 2025-12 focusing on business value and technical achievements. Highlights include delivering a new turbine interface capability for tower aerodynamics, updating tests and documentation, and validating impact on simulation accuracy and generator efficiency.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Repository: Exawind/openturbine Concise monthly summary focused on business value and technical achievements for November 2025. Key achievements: - NREL 5MW turbine model integration delivered with data handling improvements, robust error checks, and preprocessing scripts for aerodynamic data interpolation to boost model accuracy. - Commit 57e738a1543910cb382e24d54f2810492d0b1a7f integrated into main branch (#518). Major bugs fixed: - Addressed data handling edge-case issues and added robust error checking to stabilize the NREL-5MW turbine model integration, reducing potential simulation crashes. Overall impact and accomplishments: - Expanded simulation capabilities for wind turbine analysis and improved model fidelity and robustness, enabling more reliable performance assessments and faster troubleshooting. Positions openturbine for more accurate turbine modeling and scalable data processing. Technologies and skills demonstrated: - Python data processing and preprocessing for aerodynamic data interpolation - Data validation, error handling, and robustness improvements - Integration and version control practices (.git, commits, review) and collaboration on Exawind/openturbine
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Repository: Exawind/openturbine Concise monthly summary focused on business value and technical achievements for November 2025. Key achievements: - NREL 5MW turbine model integration delivered with data handling improvements, robust error checks, and preprocessing scripts for aerodynamic data interpolation to boost model accuracy. - Commit 57e738a1543910cb382e24d54f2810492d0b1a7f integrated into main branch (#518). Major bugs fixed: - Addressed data handling edge-case issues and added robust error checking to stabilize the NREL-5MW turbine model integration, reducing potential simulation crashes. Overall impact and accomplishments: - Expanded simulation capabilities for wind turbine analysis and improved model fidelity and robustness, enabling more reliable performance assessments and faster troubleshooting. Positions openturbine for more accurate turbine modeling and scalable data processing. Technologies and skills demonstrated: - Python data processing and preprocessing for aerodynamic data interpolation - Data validation, error handling, and robustness improvements - Integration and version control practices (.git, commits, review) and collaboration on Exawind/openturbine
October 2025
2 Commits • 1 Features
Oct 1, 2025October 2025 (Month: 2025-10) – Exawind/openturbine development focused on delivering feature-rich control enhancements and ensuring simulation robustness. Key feature delivery includes OpenFAST BE solver and ROSCO controller interface enhancements, enabling refined turbine operations in Region 3 and extensive revisions to numerical data arrays across multiple airfoil configurations. This work aligns with the Q4 milestone: Turbine with BE solver and ROSCO controller operating in Region 3. Major bug fix addressed hub inertia calculation by correcting the gearbox ratio usage to ratio**2, with updated tests to ensure consistent inertia calculations in turbine simulations. Impact and value: Improved modeling fidelity and control integration directly translate to more accurate performance predictions and safer, more reliable commissioning of Region 3 operations. The fixes reduce the risk of incorrect inertia coupling in generator-hub dynamics, enhancing confidence in simulations used for design optimization and regulatory-ready analyses. The work demonstrates practical proficiency in OpenFAST integration, BE solver and ROSCO controller interfaces, data structure handling, and test-driven validation.
2 Commits • 1 Features
Oct 1, 2025October 2025 (Month: 2025-10) – Exawind/openturbine development focused on delivering feature-rich control enhancements and ensuring simulation robustness. Key feature delivery includes OpenFAST BE solver and ROSCO controller interface enhancements, enabling refined turbine operations in Region 3 and extensive revisions to numerical data arrays across multiple airfoil configurations. This work aligns with the Q4 milestone: Turbine with BE solver and ROSCO controller operating in Region 3. Major bug fix addressed hub inertia calculation by correcting the gearbox ratio usage to ratio**2, with updated tests to ensure consistent inertia calculations in turbine simulations. Impact and value: Improved modeling fidelity and control integration directly translate to more accurate performance predictions and safer, more reliable commissioning of Region 3 operations. The fixes reduce the risk of incorrect inertia coupling in generator-hub dynamics, enhancing confidence in simulations used for design optimization and regulatory-ready analyses. The work demonstrates practical proficiency in OpenFAST integration, BE solver and ROSCO controller interfaces, data structure handling, and test-driven validation.
October 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on key accomplishments in OpenTurbine, delivering foundational turbine modeling capabilities for faster iterations and reliable simulations. Key outcomes include: delivery of the initial Turbine Interface Core and Simulation Framework enabling construction and simulation of wind turbines with blade and tower property definitions, aerodynamic characteristics, and material properties; comprehensive unit tests; and groundwork for advanced turbine modeling and analysis, aligning with business goals of enabling rapid design exploration and reliability.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on key accomplishments in OpenTurbine, delivering foundational turbine modeling capabilities for faster iterations and reliable simulations. Key outcomes include: delivery of the initial Turbine Interface Core and Simulation Framework enabling construction and simulation of wind turbines with blade and tower property definitions, aerodynamic characteristics, and material properties; comprehensive unit tests; and groundwork for advanced turbine modeling and analysis, aligning with business goals of enabling rapid design exploration and reliability.
April 2025
4 Commits • 1 Features
Apr 1, 2025April 2025 focused on reliability and test coverage for the matrix rotation feature in Exawind/openturbine. Delivered a strengthened test suite, reduced CI flakiness, and implemented code-quality improvements to boost maintainability. These efforts increase confidence in numerical correctness and stability across builds, supporting faster, more reliable releases.
4 Commits • 1 Features
Apr 1, 2025April 2025 focused on reliability and test coverage for the matrix rotation feature in Exawind/openturbine. Delivered a strengthened test suite, reduced CI flakiness, and implemented code-quality improvements to boost maintainability. These efforts increase confidence in numerical correctness and stability across builds, supporting faster, more reliable releases.
April 2025
March 2025
17 Commits • 3 Features
Mar 1, 2025March 2025 (2025-03) monthly summary for Exawind/openturbine focused on delivering core simulation capabilities, tightening code quality, and simplifying data inputs to accelerate adoption and reliability.
March 2025
17 Commits • 3 Features
Mar 1, 2025March 2025 (2025-03) monthly summary for Exawind/openturbine focused on delivering core simulation capabilities, tightening code quality, and simplifying data inputs to accelerate adoption and reliability.
February 2025
7 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for Exawind/openturbine focusing on feature delivery, bug fixes, and maintainability improvements. Delivered two core capabilities for orientation and beam element integration, with extensive test coverage and code quality improvements to support reliable simulations and faster future iterations.
7 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for Exawind/openturbine focusing on feature delivery, bug fixes, and maintainability improvements. Delivered two core capabilities for orientation and beam element integration, with extensive test coverage and code quality improvements to support reliable simulations and faster future iterations.
February 2025
January 2025
38 Commits • 10 Features
Jan 1, 2025January 2025 performance summary for the Exawind/open turbine repository (Exawind/openturbine). The team delivered substantial feature enhancements, structural refactors, and regression improvements, while strengthening numerical accuracy and test robustness across the codebase. The work focused on expanding physics capabilities, improving maintainability, and accelerating reliable simulation results for end-users and downstream workflows.
January 2025
38 Commits • 10 Features
Jan 1, 2025January 2025 performance summary for the Exawind/open turbine repository (Exawind/openturbine). The team delivered substantial feature enhancements, structural refactors, and regression improvements, while strengthening numerical accuracy and test robustness across the codebase. The work focused on expanding physics capabilities, improving maintainability, and accelerating reliable simulation results for end-users and downstream workflows.
Activity
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Quality Metrics
Correctness89.2%
Maintainability91.2%
Architecture85.4%
Performance81.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
C++CMakePythonYAML
Technical Skills
API DesignAerodynamicsBuild System ConfigurationBuild SystemsC++C++ DevelopmentC++ developmentCFDCFD IntegrationCFD SimulationCMakeCode AnalysisCode CleanupCode FormattingCode Linting
Repositories Contributed To
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