Ciliberti, Danilo (2016) An improved preliminary design methodology for aircraft directional stability prediction and vertical tailplane sizing. [Tesi di dottorato]


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Item Type: Tesi di dottorato
Lingua: English
Title: An improved preliminary design methodology for aircraft directional stability prediction and vertical tailplane sizing
Date: 31 March 2016
Number of Pages: 349
Institution: Università degli Studi di Napoli Federico II
Department: Ingegneria Industriale
Scuola di dottorato: Ingegneria industriale
Dottorato: Ingegneria aerospaziale, navale e della qualità
Ciclo di dottorato: 28
Coordinatore del Corso di dottorato:
De Luca,
Nicolosi, FabrizioUNSPECIFIED
Date: 31 March 2016
Number of Pages: 349
Uncontrolled Keywords: Aircraft Design; Applied Aerodynamics; CFD; Wind tunnel
Settori scientifico-disciplinari del MIUR: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/03 - Meccanica del volo
Date Deposited: 11 Apr 2016 09:37
Last Modified: 31 Oct 2016 10:07


This work deals with the development of a new preliminary design method for aircraft directional stability and vertical tail sizing. It is focused on regional turboprop aircraft because of their economic advantage over regional jets on short routes, for the increasing oil price, and because of the market needs of new airplanes in the next 20 years. The focus on aircraft directional stability is due to the significant discrepancies that classical semi-empirical methods, as USAF DATCOM and ESDU, provide for some configurations, because they are based on NACA wind tunnel tests about models not representative of an actual transport airplane. This work exploits the CFD to calculate the aerodynamic interference among aircraft parts for hundreds configurations of a given layout, providing a useful method in aircraft preliminary design. A wind tunnel investigation involving about 180 configurations has validated the numerical approach. The innovation of the work concerns the numerical and experimental parametric study on the static directional stability of a model representative of the regional turboprop aircraft category and the direct measurement of the vertical stabilizer aerodynamic forces in the wind tunnel, in addition to the force and moments acting on the whole model. In this way, useful data about aerodynamic interference have been extracted from experimental tests, which are in good agreement with the results of numerical simulations.

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