Atmospheric stability in CFD – Representation of the diurnal cycle in the atmospheric boundary layer
Publication: Research - peer-review › Poster – Annual report year: 2012
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Atmospheric stability in CFD – Representation of the diurnal cycle in the atmospheric boundary layer. / Koblitz, Tilman; Bechmann, Andreas; Sogachev, Andrey; Sørensen, Niels N.
2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.Publication: Research - peer-review › Poster – Annual report year: 2012
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TY - CONF
T1 - Atmospheric stability in CFD – Representation of the diurnal cycle in the atmospheric boundary layer
A1 - Koblitz,Tilman
A1 - Bechmann,Andreas
A1 - Sogachev,Andrey
A1 - Sørensen,Niels N.
AU - Koblitz,Tilman
AU - Bechmann,Andreas
AU - Sogachev,Andrey
AU - Sørensen,Niels N.
PY - 2012
Y1 - 2012
N2 - For wind resource assessment, the wind industry is increasingly relying on Computational Fluid Dynamics (CFD) models that focus primarily on modeling the airflow in a neutrally stratified surface layer. So far, physical processes that are specific to the atmospheric boundary layer (ABL), for example the Coriolis force, buoyancy forces and heat transport, are mostly ignored in state-of-the-art CFD models. In order to decrease the uncertainty of wind resource assessment, especially in complex terrain, the effect of thermal stratification on the ABL should be included in such models.<br/>The present work examines the influence of stability on the whole ABL using the modified in-house CFD code (DTU Wind Energy) EllipSys3D. Typical diurnal cycles are simulated and compared against previous simulations and measurements from the GABLS II model intercomparison [6].
AB - For wind resource assessment, the wind industry is increasingly relying on Computational Fluid Dynamics (CFD) models that focus primarily on modeling the airflow in a neutrally stratified surface layer. So far, physical processes that are specific to the atmospheric boundary layer (ABL), for example the Coriolis force, buoyancy forces and heat transport, are mostly ignored in state-of-the-art CFD models. In order to decrease the uncertainty of wind resource assessment, especially in complex terrain, the effect of thermal stratification on the ABL should be included in such models.<br/>The present work examines the influence of stability on the whole ABL using the modified in-house CFD code (DTU Wind Energy) EllipSys3D. Typical diurnal cycles are simulated and compared against previous simulations and measurements from the GABLS II model intercomparison [6].
KW - EWEA 2012
ER -