Ferdinando Cannizzo, Giovanni Lombardi, Giuseppe Petrotta, Luca Caldirola, Marco Maganzi
2007
Cubit, Ferrari, Università di Pisa
Abstract
This paper presents the comprehensive aerodynamic development process of the Ferrari FXX supercar. The development was essentially based on intensive CFD use combined with wind tunnel validation. The work covers the complete aerodynamic optimization of the vehicle including underbody flow management, rear diffuser design, and active aerodynamic devices.
The Ferrari FXX represented a significant step forward in road car aerodynamics, implementing racing-derived technologies for improved downforce and drag management. CFD results were verified in Ferrari's wind tunnel facilities with differences less than 5% on global aerodynamic coefficients. The project demonstrated how advanced simulation tools can accelerate the development of high-performance vehicles while maintaining accuracy comparable to physical testing.
Conference/Journal: 6th MIRA International Vehicles Aerodynamics Conference, Warwick, UK (2006)
Ferdinando Cannizzo, Giovanni Lombardi, Luca Caldirola, Marco Maganzi
2006
Cubit, Ferrari, Università di Pisa
Abstract
This paper presents the comprehensive aerodynamic development process of the Ferrari FXX supercar. The development was essentially based on intensive CFD use combined with wind tunnel validation. The work covers the complete aerodynamic optimization of the vehicle including underbody flow management, rear diffuser design, and active aerodynamic devices.
The Ferrari FXX represented a significant step forward in road car aerodynamics, implementing racing-derived technologies for improved downforce and drag management. CFD results were verified in Ferrari's wind tunnel facilities with differences less than 5% on global aerodynamic coefficients. The project demonstrated how advanced simulation tools can accelerate the development of high-performance vehicles while maintaining accuracy comparable to physical testing.
Conference/Journal: 6th MIRA International Vehicles Aerodynamics Conference, Warwick, UK (2006)
Giovanni Lombardi, Giuseppe Petrotta, Luca Caldirola, Marco Maganzi
2005
Cubit, Ferrari, Università di Pisa
Abstract
Il presente articolo descrive l’attività di ricerca e sviluppo sul veicolo FXX: si tratta di un veicolo avente funzioni di dimostratore tecnologico al quale sono state applicate alcune soluzioni aerodinamiche innovative con l’obiettivo di poterle esportare in tempi brevi ad altre vetture. Le soluzioni indagate riguardano winglet, soffiaggi in particolare l’impiego del base bleed; l’attività di sviluppo del veicolo FXX è stata svolta in una fase preliminare con l’ausilio esclusivo della CFD per valutare l’efficacia delle soluzioni proposte, tali soluzioni sono poi state valutate con l’ausilio delle tradizionali tecniche sperimentali. Lo sviluppo di questo veicolo ha richiesto fortissime sinergie tra lo stile, produzione, galleria e gruppo CFD per assicurare di avere geometrie sempre aggiornate. Infine si prospetta una campagna di validazione CFD galleria con risultati delle prove in pista del veicolo.
Authors: G. Lombardi
Conference/Journal: IIX FLUENT ITALIA USER MEETING, 2005
Keywords: CFD, aerodinamica, winglet, base bleed, automotive
A flow discharge in the underbody car surface, usually necessary for the internal flow systems, represents a critical aspect. The effects of different shape of the discharge surfaces, both experimentally and numerically, are analysed. For all the considered aerodynamic quantities (drag, vertical load, balance) a importance of the exhaust geometry is evident. Furthermore, for some configurations, sensitivity to both the attitude and ride height is present. The high differences in the aerodynamic coefficients are essentially related to the separation of the flow, significantly different for the considered geometries, that occurs downstream the air intake exhaust.
Authors: Giovanni Lombardi, Enrico Cardile, Luca Caldirola, Stefano Carmassi
Conference/Journal: 5th MIRA International Vehicle Aerodynamics Conference, Warwick (GB)
