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Mann spectral tensor model [1 record]
Record 1 - internal organization data 2011-06-07
Record 1, English
Record 1, Subject field(s)
- Modelling (Mathematics)
- Meteorological Forecasting, Data Measurement and Analysis
- Wind Energy
Record 1, Main entry term, English
- Mann spectral tensor model
1, record 1, English, Mann%20spectral%20tensor%20model
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
To facilitate inclusion of atmospheric stability classification in the wake meandering modeling, we fit the Mann spectral tensor model to stable and unstable atmospheric stratification. The Mann model adapts well to the observations in all stability classes, although the model was developed for neutral conditions only. 1, record 1, English, - Mann%20spectral%20tensor%20model
Record number: 1, Textual support number: 1 OBS
The Mann spectral method combines rapid distortion theory, an assumed linear mean wind shear, the Von Kármán spectral tensor and a model for eddy lifetime, and it is restricted to homogeneous Gaussian turbulence fields. Although the spectral tensor in principle contains the same information as the cross spectra, the tensor formulation leads to considerable simpler and faster simulations of turbulence than the cross spectra based methods. This type of synthetic turbulence field generation will therefore still be used for simulating the ambient turbulence field as well as the large scale turbulence field applied for the description of the meandering process. 2, record 1, English, - Mann%20spectral%20tensor%20model
Record 1, French
Record 1, Domaine(s)
- Modélisation (Mathématique)
- Prévisions météorologiques et mesure et analyse des données
- Énergie éolienne
Record 1, Main entry term, French
- modèle de tenseur spectral de Mann
1, record 1, French, mod%C3%A8le%20de%20tenseur%20spectral%20de%20Mann
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Des modélisations plus complexes de la turbulence ont depuis été élaborées. En particulier, Jacob Mann (RISO Danish National Laboratory) a développé le modèle de tenseur spectral de Mann […] Dans ce cas, le champ de turbulence vu par l’éolienne est assimilé à un champ vertical dépendant du temps, initialement isotrope et homogène. Ce champ devient progressivement anisotrope en se déformant par cisaillement sur une période de temps T, dont l’effet est estimé par linéarisation des équations de Navier-Stokes (principe de la Rapid Distorsion Theory). Le degré de complexité suivant réside dans la prise en compte de la non-homogénéité de la composante verticale. 1, record 1, French, - mod%C3%A8le%20de%20tenseur%20spectral%20de%20Mann
Record 1, Spanish
Record 1, Textual support, Spanish
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