IEA-15-240-RWT - Compatibility with OpenFAST v4

Renewable Energy - Wind Energy - Roff
Published by gbarter about 1 month ago

IEA-15-240-RWT - Resolve tabular performance errors

• The tabular performance in the Excel file in the Documentation folder had some errors in the prior release that have been resolved.
• We also removed a inconsistency where the floating turbine used peak thrust shaving but the fixed bottom did not. True to the original report and design intent, there is now no peak thrust shaving in either version.

Renewable Energy - Wind Energy - Roff
Published by gbarter 4 months ago

IEA-15-240-RWT - A few improvements and corrections

Updates in this release:

• Improvements in the auto-generation of the tabular data (#208 )
• Keeping the WindIO yaml-files consistent with upstream updates
• Update the second-order hydrodynamic data and the associated WAMIT input and output files for the UMaineSemi (#215 )
• Another iteration and improvement on the OpenFAST Elastodyn mode shape coefficients (#216 )
• Fix the VTK_fps input for OpenFAST files (#217 )

Renewable Energy - Wind Energy - Roff
Published by gbarter 5 months ago

IEA-15-240-RWT - Fix nacelle mass properties

A error in a couple of the parameter names in the yaml-files had caused zero-values to be passed to some of the drivetrain components, which led to bad values in CoM and MoI and mass values. This is now resolved thanks to the critical eye of our user community.

Also a minor change to fill the monopile with seawater in the OpenFAST simulations.

Renewable Energy - Wind Energy - Roff
Published by gbarter 12 months ago

IEA-15-240-RWT - v1.1.10: Correct errors in OpenFAST monopile SubDyn module

What's Changed

• Correct bug in interface joint (transition piece) and piecewise-constant thickness profile in OpenFAST monopile subdyn model via #184 and #185

Renewable Energy - Wind Energy - Roff
Published by gbarter about 1 year ago

IEA-15-240-RWT - ROSCO v2.9 and mooring "volume equivalent diameter"

This release brings in ROSCO v2.9 and a bug-fix in the mooring diameter specification to be the "volume equivalent diameter", which is more appropriate for modeling.

Renewable Energy - Wind Energy - Roff
Published by gbarter about 1 year ago

IEA-15-240-RWT - ROSCO v2.8 and minor fix in HAWCStab2 file.

This release brings in ROSCO v2.8 and some fixes for HAWCStab2 generator efficiency value used in the "onshore" (tower and above) files.

Renewable Energy - Wind Energy - Roff
Published by gbarter over 1 year ago

IEA-15-240-RWT - Fix tower induced instability

This release brings back tower-only structural damping to 1% targeting a fore-aft and side-side first mode damping of 0.3%, see here https://github.com/IEAWindTask37/IEA-15-240-RWT/pull/158

Renewable Energy - Wind Energy - Roff
Published by ptrbortolotti over 1 year ago

IEA-15-240-RWT - v1.1.6: HAWC2 monopile, VolturnUS-S CAD model

Features in this release:

• Addition of a HAWC2 monopile model
• Alignment of tower and monopile discretizations and properties across YAML, HAWC2, and OpenFAST files
• Addition of SolidWorks CAD model for UMaine VolturnUS-S semisubmersible
• Improvements to blade shape geometry continuity

Renewable Energy - Wind Energy - Roff
Published by gbarter almost 2 years ago

IEA-15-240-RWT - Improvements in OpenFAST floating model

• Update OpenFAST input files for v3.5.1 release API changes
• Floating tower damping reverted to 1.0% to resolve numerical instabilities. There is a good deal of uncertainty about the true value here as it is normally determined experimentally. Comments to this effect have been added to the Wiki entry.
• Update the second-order potential-flow wave excitation of the VolturnUS-S platform. https://github.com/IEAWindTask37/IEA-15-240-RWT/pull/137.

Renewable Energy - Wind Energy - Roff
Published by gbarter almost 2 years ago

IEA-15-240-RWT - v1.1.4: Updated OpenFAST and ROSCO

• Update OpenFAST input files for v3.4.1 release API changes
• Update ROSCO libraries and inputs to v2.7
• Blade elastic properties consistently originate from SONATA/ANBA4
• Cleanup of stale files and README comments

Renewable Energy - Wind Energy - Roff
Published by gbarter about 2 years ago

IEA-15-240-RWT - v1.1.3

v 1.1.3

• Update OpenFAST input files for v3.3 release API changes
• Provide both WAMIT input and output files, with a bug fix regarding platform orientation
• Adjust OpenFAST ElastoDyn NacYIner and PtfmYIner according to monopile simulation best practices
• Additional references to community design contributions and permutations in the README
• Remove deprecated BModes files
• Fix minor errors in the tabulated documentation data

Renewable Energy - Wind Energy - Roff
Published by gbarter over 2 years ago

IEA-15-240-RWT - Updating to latest ROSCO version

Updates to the OpenFAST controller files to support the recent ROSCO v2.5 release

Renewable Energy - Wind Energy - Roff
Published by gbarter about 3 years ago

IEA-15-240-RWT - Fix errors in OpenFAST floating files

The Elastodyn tower mode shapes in the floating version were causing an instability and the platform center of mass value was incorrect. These have been corrected and noted in the release notes.

Renewable Energy - Wind Energy - Roff
Published by gbarter about 3 years ago

IEA-15-240-RWT - IEA Wind 15-MW Reference Wind Turbine update

IEA Wind Task 37 is proud to release an update to its 15-MW Reference Wind Turbine. A detailed list of changes is provided in the release notes. Many of these updates were driven by community engagement, so we are appreciative of everyone that has taken the time to document the issues and give us feedback.

Renewable Energy - Wind Energy - Roff
Published by gbarter about 3 years ago

IEA-15-240-RWT - Switch to versioning of the RWT

This release tags the master branch as the design which corresponds to the published reports. This also signals that updates will be coming that address some of the design issues and model input issues identified by the community.

Renewable Energy - Wind Energy - Roff
Published by gbarter about 4 years ago