In questo corso sarà illustrato il processo di preparazione di un apparato sperimentale per studiare l’aerodinamica e l’aeroacustica di modelli in scala. Il corso si focalizzerà’ sugli aspetti più rilevanti per effettuare misure di pressione e velocità. Dettagli su come si ottimizza un apparato sperimentale e le tecniche di misure per problemi di aeroacustica verranno discussi

Day 1: Fundamentals of measurement techniques and setup preparation, 6h Lecture 1: (2h) Experimental testing in large scale models, the challenges and the requirements Full scale-models versus component, why? Reynolds scaling aspects and wind-tunnel choice. The parameters to select, rotating versus stationary objects. Lecture 2: (2h) Acoustic measurements: microphone applications for hydrodynamic and far-field pressures What is a microphone and how do we use it to isolate far field acoustic pressure? Can we adapt a microphone to measure wall pressure fluctuations? Pressure measurements, in-field versus wind-tunell measurements, what are the challenges? Lecture 3: (2h) Laser velocimetry: spatial vs. temporal resolution, how to trade off for large scale application Particle image velocimetry, how does it work and what can we do with it? How can we use laser velocimetry information for visualization or for integral quantities. Advanced techniques for saving on costs and increasing high-dynamic spatial resolution. Day 2: Applications and exercise for setup preparation, 6h Lecture 4: (2h) Applications in aeroacoustics Wind-energy and propeller applications in wind-tunnels. Drone measurements and full scale 3D visualization. In-field applications for wind-turbine noise. Group exercise: (2h)Analysis of component setup: propeller and pylon interaction Simulation of model preparation and experimental measurement setup (2h) Analysis of full scale setup: maneuvering drone Simulation of model preparation and experimental measurement setup

In presenza

Prova di laboratorio di natura pratica sperimentale o informatico

P.D.2-2 - Giugno

to be defined