The National Aeronautics and Space Administration (NASA) has, in the latest decades, dedicated significant resources to the development of advanced propellers capable of operating at high cruise Mach number . Without anticipating anything about the nature of the topic under discussion, it is to be pointed out that the results, known as "prop-fan", have been originated from the necessity to develop a technologic solution aimed at improving aerodynamic performance at transonic speeds. In consideration of this reason, the present paper has set the objective to analyse the profiles of the propeller, through the use of a semi-analytical method. The above analysis allowed to get a greater number of points than the ones provided by the National Advisory Committee for Aeronautics (NACA). Furthermore, this approach gave rise to a geometry as faithful and precise as possible to empirical reality.
La National Aeronautics and Space Administration (NASA) ha dedicato, negli ultimi decenni, notevoli risorse allo sviluppo di eliche avanzate in grado di operare a elevati numeri di Mach di crociera. Senza anticipare alcunché circa la natura del tema in oggetto di discussione, occorre precisare che quanto ne è derivato, noto sotto la denominazione di “prop-fan”, ha tratto origine dall’esigenza di sviluppare una soluzione tecnologia volta al miglioramento delle prestazioni aerodinamiche a velocità transoniche. In considerazione di tale ragione, il presente elaborato si è preposto l’obiettivo di ricostruire i profili componenti l’elica, attraverso l’utilizzo di un metodo semi-analitico che ha permesso di definire e fissare un numero maggiore di punti rispetto quelli dati da National Advisory Committee for Aeronautics (NACA). Si aggiunga a ciò che detto approccio permetterebbe di dare vita ad una geometria consistente in una rappresentazione il più fedele possibile alla realtà empirica.
Ricostruzione della geometria palare e simulazione fluidodinamica di un'elica propulsiva transonica
ZANON, GUSTAVO
2024/2025
Abstract
The National Aeronautics and Space Administration (NASA) has, in the latest decades, dedicated significant resources to the development of advanced propellers capable of operating at high cruise Mach number . Without anticipating anything about the nature of the topic under discussion, it is to be pointed out that the results, known as "prop-fan", have been originated from the necessity to develop a technologic solution aimed at improving aerodynamic performance at transonic speeds. In consideration of this reason, the present paper has set the objective to analyse the profiles of the propeller, through the use of a semi-analytical method. The above analysis allowed to get a greater number of points than the ones provided by the National Advisory Committee for Aeronautics (NACA). Furthermore, this approach gave rise to a geometry as faithful and precise as possible to empirical reality.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/82994