WINDBENCH: Benchmarking of Flow Models for Wind Applications

The WINDBENCH platform is developed to guide developers and end-users on best practices for using wind flow models based on quality assurance procedures that are mutually recognized by the wind community as standards of good practice. To this end, the platform offers an updated inventory of models, a repository of quality checked test cases for model verification and validation and documentation to orient the user. Standards of good practice are built from model intercomparison benchmarks with different levels of complexity.

The Windbench platform is migrating to a new modular design and moving some contents to open-access so you may experience problems accessing data during this transition period. The model and test case inventory generated during the first phase of the IEA Task 31 Wakebench is now publically available. If you want to participate in any of the existing benchmarks you still need to log-in with your Windbench user account to get access to data.

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News

6-May-2015: Wakebench Phase 1 concluded with the publication of the first edition of the Model Evaluation Protocol for Wind Farm Flow Models

The first phase of the IEAWind Task 31has concluded with the publication of the first edition of the Model Evaluation Protocol for Wind Farm Flow Models (MEP). The Task has focused on establishing a framework for verification and validation of microscale flow models used in connection to wind resource assessment, site suitability and wind farm design applications. The MEP is accompained by a technical annex that collect more detailed information on specific topics in the form of best practice guidelines articles.

23-Oct-2014: IEA Task 31 "Wakebench" extension approved for three more years

The first phase of the IEA Task 31 "Wakebench" finished on October 2014. A proposal to extend the Task for three more years was approved by the IEA-Wind Executive Committe.The model evaluation framework developed throughout Task 31 for microscale wind farm flow models will be generalized to mesoscale and near-wake models in order to cover all the relevant atmospheric scales related to wind power meteorology. This will allow a more comprehensive approach to the wind farm integrated design process, facilitating the exchange of knowledge among various research communities: meteorologists, resource/site wind engineers and wind farm/rotor aerodynamicists. The focus will still be placed on wind resource/site assessment and wind farm design but allowing for a larger variety of modeling approaches. Some benchmarks will also be explored in finer detail to better quantify the uncertainty of a range of models for different phenomena.Following Task 31 working procedures, the work will be organized around model intercomparison benchmarks, established around well-defined test cases from research and industrial measurement campaigns. Uncertainty quantification on wind assessment will be considered as the final outcome of the model evaluation process. As a result a framework for model verification, validation and uncertainty quantification (VV&UQ) will be defined as a new edition of the Model Evaluation Protocol (MEP) delivered in Task 31 and integrated in the windbench.net web portal.The extension of Task 31, still called WAKEBENCH will be titled ” VV&UQ of Wind Farm Flow Models”. The kick-off meeting is scheduled on the 11th of June 2015 just after the Wake Conference 2015 hosted by Upsala University in Gotland, Sweden.

1-Nov-2011: New LinkedIn group created for WAKEBENCH followers

If you would like to be updated about the progress of WAKEBENCH and participate in discussions around flow modeling and validation this is your site.

7-Oct-2011: WAKEBENCH IEA Task took off successfully with more than 50 participants

The kick-off meeting of the IEA Task 31 WAKEBENCH "Benchmarking of Wind Farm Flow Models" took place at CENER's headquarters in Sarriguren, Spain, between the 4th and the 7th of October 2011. The aim of this task is to provide a forum for industrial, governmental and academic partners to develop, evaluate and improve atmospheric boundary layer and wind turbine wake models for use in wind energy.The meeting was successful not only because of the high level of participation (more than 40 institutions from 15 countries) but also considering the high level of the technical presentations and the discussions. A technical tour to CENER's Test Site in complex terrain was guided on the last day despite the bad weather conditions.