TY - JOUR
T1 - Meso-microscale coupling for wind resource assessment using averaged atmospheric stability conditions
AU - Durán, Pablo
AU - Meißner, Cathérine
AU - Rutledge, Kendall
AU - Fonseca, Ricardo
AU - Martin-Torres, Javier
AU - Adaramola, Muyiwa S.
N1 - Funding Information:
This research was supported by a grant from The Norwegian Research Council, project number 271080. We acknowledge Botnia-Atlantica, an EU-programme financing cross border cooperation projects in Sweden, Finland and Norway, for their support of this work through the WindCoE project. We would like to thank the High Performance Computing Center North (HPC2N) for providing the computer resources needed to perform the numerical experiments presented in this paper. We would also like to thank the two anonymous reviewers for their useful comments.
Publisher Copyright:
© 2019 The authors
PY - 2019
Y1 - 2019
N2 - A methodology to couple Numerical Weather Prediction (NWP) models with steady-state Computational Fluid Dynamic (CFD) models for wind resource assessment applications is proposed. NWP simulations are averaged according to their atmospheric stability and wind direction. The averaged NWP simulations are used to generate the initial and boundary conditions of the CFD model. The method is applied using one year of Weather Research and Forecasting (WRF) simulations at the Honkajoki wind farm in Finland and validated by Sonic Detection and Ranging (SODAR) measurements at the site. It is shown that coupled simulations reproduce a more realistic shear for heights above 150 m. In terms of estimated energy production, there is not a big difference between coupled and standalone models. Nevertheless, a considerable difference in the horizontal wind speed patterns can be seen between the coupled and non-coupled approaches. The WRF model resolution has only a small influence on the coupled CFD results.
AB - A methodology to couple Numerical Weather Prediction (NWP) models with steady-state Computational Fluid Dynamic (CFD) models for wind resource assessment applications is proposed. NWP simulations are averaged according to their atmospheric stability and wind direction. The averaged NWP simulations are used to generate the initial and boundary conditions of the CFD model. The method is applied using one year of Weather Research and Forecasting (WRF) simulations at the Honkajoki wind farm in Finland and validated by Sonic Detection and Ranging (SODAR) measurements at the site. It is shown that coupled simulations reproduce a more realistic shear for heights above 150 m. In terms of estimated energy production, there is not a big difference between coupled and standalone models. Nevertheless, a considerable difference in the horizontal wind speed patterns can be seen between the coupled and non-coupled approaches. The WRF model resolution has only a small influence on the coupled CFD results.
KW - Boundary conditions
KW - Computational Fluid Dynamics (CFD)
KW - Mesoscale microscale coupling
KW - Physical downscaling
KW - Wind energy resource assessment
UR - http://www.scopus.com/inward/record.url?scp=85076370208&partnerID=8YFLogxK
U2 - 10.1127/metz/2019/0937
DO - 10.1127/metz/2019/0937
M3 - Article
AN - SCOPUS:85076370208
SN - 0941-2948
VL - 28
SP - 273
EP - 291
JO - Meteorologische Zeitschrift
JF - Meteorologische Zeitschrift
IS - 4
ER -