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fastFoam - an aero-servo-elastic wind turbine simulation method

Paper presented at 6th Symposium on OpenFOAM in Wind Energy, June 13th-14th, 2018, Visby, Sweden
: Becker, Max; Daniele, Elia; Dose, Bastian; Stoevesandt, Bernhard; Kleinert, Jan; Bayrasy, Pascal; Wolf, Klaus

Fulltext urn:nbn:de:0011-n-5067669 (4.8 MByte PDF)
MD5 Fingerprint: 03f7f04a5f5f10a0aa3d155f4cd19241
Created on: 24.8.2018

2018, 7 pp.
Symposium on OpenFOAM in Wind Energy (SOWE) <6, 2018, Visby>
Conference Paper, Electronic Publication
Fraunhofer IWES ()

In the presented aero-servo-elastic co-simulation the connection is established via a partitioned coupling approach, where both codes are kept as an own, utilizing the code coupling environment MpCCI developed by Fraunhofer SCAI. Simulation cases were set-up in FAST and OpenFOAM for two turbines. Results for the smaller NREL phase VI turbine showed that conditions with large yawing or pitching the fastFOAM showed a better agreement to the experimental data. Particularly, in yawed-inflow the correction model employed in FAST was unable to predict the load variations over the rotor rotation. Finally, results for the NREL 5MW turbine indicated that the torque and pitch control can greatly influence the results, and due to blade flexibility the deviations between both CFD methods increased.