European Turbulence Conference 2015

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12:15
15 mins

Exploitation of homogeneous isotropic turbulence models for optimization of turbulence remote sensing
Albert Oude Nijhuis, Oleg Krasnov, Christine Unal, Herman Russchenberg, Alexander Yarovoy

Session: Atmospheric turbulence 3
Session starts: Wednesday 26 August, 10:30
Presentation starts: 12:15
Room: Room C

Albert Oude Nijhuis (Delft University of Technology)
Oleg Krasnov (Delft University of Technology)
Christine Unal (Delft University of Technology)
Herman Russchenberg (Delft University of Technology)
Alexander Yarovoy (Delft University of Technology)

Abstract:
Homogeneous isotropic turbulence (HIT) models are compared, with respect to optimization of turbulence remote sensing. HIT models have different applications such as load calculation for wind turbines (Mann, 1998) or droplet track modelling (Pinsky and Khain, 2006). Details of vortices seem of less relevance for modelling `realistic measurements', where the single purpose is to retrieve the eddy dissipation rate (EDR). Without the need for modelling the vortices, a faster and simpler approach might be favorable. The cascade turbulence model (CTM) is suggested. The CTM solution is scale invariant and a fast solution for one-dimensional HIT modelling. In this presentation modelled radar measruments for scanning mode (rotating antenna) are compared for different HIT models. The consequences for turbulence remote sensing optimization are discussed.