PhD student Siri Kalvig has recently visited NREL (National Renewable Energy Laboratory) Wind Technology Center in Boulder, Colorado. The landscape there, with grass planes bordering steep mountain sides, is ideal for examining turbulence effects on the NREL wind turbines. The picture below shows Siri Kalvig with her co-supervisor Eirik Manger, CFD specialist at Acona Flow Technology AS, at the top of one of the test turbines.


Photo: Andrew Scholbrock, NREL

Siri Kalvig has been working with both turbine modelling and marine atmospheric boundary layer modelling with the open source toolbox openFOAM. She has previously tested her implementation by participating in the yearly NORCOWE/NOWITECH Wind Wake Workshop. NREL has developed an open source code based on OpenFOAM entitled SOWFA - Simulator for Offshore Wind Farm Applications - and Siri met with the developers of the code, discussing implementation and challenges connected with her PhD work.

During her PhD she has, together with her supervisors, developed a method for simulating wind flow over a moving wave surface.She is now comparing this work with other simulations and with observations. She has also done a review of the governing standards as well as explored the gap between "best knowledge" and "best practice" in boundary layer meteorology for offshore wind energy. Siri is doing an industrial PhD at the University of Stavanger, being employed by StormGeo.

NREL and NORCOWE signed a Memorandum of Understanding in March 2012 to further their collaboration.



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