The objective of this report is to analyse the relevance of a serie of profile loss, flow-profile deviation and optimal incidence correlations extracted from the literature and to compare them to the model used at Safran Aircraft Engines. In order to achieve this objective, a database of NS2.75D CFD simulations from the Safran Aircraft Engines experience was set up. In addition, simulations on the conventional NACA65 profile, the most widely used for the development of correlations in the literature, were added using the Safran Aircraft Engines method presented below. For the NACA65 study, a comparison between the NS2.75D results and the MISES solver results at the beginning of the validation process is proposed. Reliable correlations for the flow-profile deviation in adaptation and for the optimal incidence are observed. New corrections for the Safran Aircraft Engines profile loss model are presented.
L'obiettivo di questo rapporto è di analizzare la pertinenza di una serie di correlazioni di perdite di pressione totale causate dal profilo aerodinamico, deviazione flusso-profilo e incidenza ottimale estratte dalla letteratura e le confrontare alle correlazioni utilizzate a Safran Aircraft Engines. Per raggiungere questo obiettivo, è stato creato un database di simulazioni CFD NS2.75D dall'esperienza Safran Aircraft Engines e sono state aggiunte simulazioni sul profilo convenzionale NACA65, il più utilizzato per lo sviluppo di correlazioni in letteratura, utilizzando il metodo Safran Aircraft Engines presentato di seguito. Per lo studio NACA65, viene proposto un confronto tra i risultati di NS2.75D e i risultati del solutore MISES all'inizio del processo di convalida. Correlazioni piuttosto affidabili sono trovate per la deviazione del profilo di flusso all'incidenza ottimale e per l'incidenza ottimale. Nuove correzioni sono proposte per il modello di perdite di pressione di Safran Aircraft Engines.
Study of the validity of 2D aerodynamic correlations of losses and deviation via a numerical wind tunnel
FERRARI, LUCA
2020/2021
Abstract
The objective of this report is to analyse the relevance of a serie of profile loss, flow-profile deviation and optimal incidence correlations extracted from the literature and to compare them to the model used at Safran Aircraft Engines. In order to achieve this objective, a database of NS2.75D CFD simulations from the Safran Aircraft Engines experience was set up. In addition, simulations on the conventional NACA65 profile, the most widely used for the development of correlations in the literature, were added using the Safran Aircraft Engines method presented below. For the NACA65 study, a comparison between the NS2.75D results and the MISES solver results at the beginning of the validation process is proposed. Reliable correlations for the flow-profile deviation in adaptation and for the optimal incidence are observed. New corrections for the Safran Aircraft Engines profile loss model are presented.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/182901