Descrizione del progetto
Uno sciame di droni per misurare i fenomeni turbolenti nello strato più basso dell’atmosfera
Il progetto ESTABLIS-UAS, finanziato dall’UE, si propone di utilizzare una flotta di veicoli aerei senza pilota per misurare le caratteristiche, la temperatura e l’umidità del vento ad alta risoluzione. L’analisi dei dati derivati dallo sciame di droni, combinata con l’osservazione del suolo e i dati di telerilevamento, fornirà una visione senza precedenti dei complessi processi dello strato limite atmosferico. Una migliore comprensione degli effetti della turbolenza consentirebbe agli ingegneri di determinare con maggiore precisione i carichi a cui saranno sottoposte le turbine eoliche durante il loro ciclo di vita e prevedere quanta energia immetteranno nella rete energetica.
Obiettivo
Exchange and transport processes in the atmospheric boundary layer (ABL) are driven by turbulence on a wide range of scales. Their adequate parameterization in numerical weather prediction (NWP) models is essential for a high predictive skill of forecasts. In heterogenous and complex terrain, the common simplification of turbulence to statistical models does not necessarily hold. Coherent structures such as convective cells, secondary circulations, gusts, slope and valley flows can be summarized to sub-mesoscale structures which are not well represented in models. A reason for the lack of understanding of these flow features is the challenge to adequately sample their spatio-temporal structure and their contribution to the energy budget of the ABL.
The project ESTABLIS-UAS will provide methods to expose spatio-temporal structures in the ABL with in-situ measurements by a fleet of unmanned aerial systems (UAS). For this purpose, small, rotary-wing UAS will be enabled to measure three-dimensional wind, temperature and humidity in organized, spatially distributed networks. The project will include a three-fold approach to validate single UAS measurements, fleet observations and methods to derive spatial averages and fluxes. Wind tunnel tests, field experiments and virtual measurements in numerical simulations will be performed.
The validated UAS fleet will be deployed in two campaigns in the framework of the TEAMx research programme, focusing on the mountain boundary layer (MoBL). The ESTABLIS-UAS measurements will fill observational gaps in the sub-mesoscale. The analysis of the UAS fleet data in synthesis with ground observations and remote sensing will provide unprecedented new insights into the complex MoBL flow and the components of its energy budget. The results will foster the development of new and better parameterization of the ABL in complex terrain.
Campo scientifico
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- engineering and technologyenvironmental engineeringremote sensing
- natural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologyatmospheric circulation
- natural sciencesmathematicsapplied mathematicsstatistics and probability
Parole chiave
Programma(i)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Argomento(i)
Meccanismo di finanziamento
HORIZON-ERC - HORIZON ERC GrantsIstituzione ospitante
51147 Koln
Germania