Descrizione del progetto
L’efficienza aerodinamica delle ali a turboelica
Il settore dei trasporti aerei si evolve in continuazione, per gestire l’aumento del traffico passeggeri sulle tratte brevi. I turboelica versatili e convenienti sono ultimamente in rimonta, aiutando le compagnie aeree a creare più rotte. Il progetto ESTRO, finanziato dall’UE, sta conducendo numerosi collaudi nella galleria del vento per valutare l’efficienza aerodinamica delle ali dell’aeromobile a turboelica con 90 posti recentemente introdotto. L’attenzione sarà rivolta alla verifica del flusso laminare e del carico alare a numeri di Mach medio-alti (fino a 0,67) e numeri di Reynolds nella galleria del vento di circa 10-11 milioni. I modelli computerizzati integreranno il lavoro sperimentale convalidando i risultati sperimentali.
Obiettivo
According to the requirements of the topic JTI-CS2-2018-CFP08-REG-03-01, the proposal ESTRO will produce experimental and numerical data in flow speed and in “cruise conditions” to validate the relevant aerodynamic performance of the Regional 90 sit turboprop A/C wing including laminar flow extension measurements and wing span load distribution. In particular, the tests in wind tunnel conditions will be performed at some Reynolds numbers, whose higher value is expected to be around 7-8 millions, and at low and medium Mach numbers. Accurate pressure distributions, infrared flow images, wing deformation, wall balance and load control and alleviation measurements are expected. The data will be the result of an experimental test campaign performed in a Laminar Wind tunnel with the main objective to evaluate the laminar flow robustness, the aerodynamic performances and load control effectiveness of a turboprop A/C wing at medium/low speeds (Mach numbers up to 0.38) and wind tunnel Reynolds number around 7-8 million. Numerical simulations aim to first assess the wind tunnel experimental results and then to extrapolate the data to flight conditions. In addition, the effects of the propeller on the wing laminar flow extension will be evaluated through 3D boundary layer computations coupled to linear stability analyses based on ray theory.
Campo scientifico
Parole chiave
Programma(i)
Meccanismo di finanziamento
RIA - Research and Innovation actionCoordinatore
84084 Fisciano Sa
Italia