3D Numerical Studies on External Aerodynamics of a Flying Car

Authors: Sasitharan Ambicapathy, J. Vignesh, P. Sivaraj, Godfrey Derek Sams, K. Sabarinath, V. R. Sanal Kumar

Abstract:

The external flow simulation of a flying car at take off phase is a daunting task owing to the fact that the prediction of the transient unsteady flow features during its deployment phase is very complex. In this paper 3D numerical simulations of external flow of Ferrari F430 proposed flying car with different NACA 9618 rectangular wings have been carried. Additionally, the aerodynamics characteristics have been generated for optimizing its geometry for achieving the minimum take off velocity with better overall performance in both road and air. The three-dimensional standard k-omega turbulence model has been used for capturing the intrinsic flow physics during the take off phase. In the numerical study, a fully implicit finite volume scheme of the compressible, Reynolds-Averaged, Navier-Stokes equations is employed. Through the detailed parametric analytical studies we have conjectured that Ferrari F430 flying car facilitated with high wings having three different deployment histories during the take off phase is the best choice for accomplishing its better performance for the commercial applications.

Keywords: Aerodynamics of flying car, air taxi, negative lift. roadable airplane.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1092794

References:

[1] Godfrey Derek Sams, Kamali Gurunathan, and Prasanth Selvan, V.R. Sanal Kumar "Conceptual Design and Analysis of Ferrari F430 Flying Car”, with proceedings of "International Journal of Research in Engineering and Technology (IJRET)” Vol. 1, No. 6, 2012 ISSN 2277 – 4378.
[2] Godfrey Derek Sams, Kamali Gurunathan, and Prasanth Selvan, V.R. Sanal Kumar "Conceptual Design and Analysis of Ferrari F430 Flying Car”, International Conference on Aerospace, Automotive and Mechanical Engineering (ICAAME'2012), Planetary Scientific and Research Center, Pattaya, Thailand, December 8-9, 2012.
[3] Page, Lewis, "Terrafugia flying car gets road-safety exemptions", The Register, 4 July 2011; retrieved 11 July 2011.
[4] Wolf-Heinrich Hucho, Chapter 1 - Introduction to automobile aerodynamics, Aerodynamics of Road Vehicles, 1987, Pages 1-46.
[5] McBeath, S., Competition Car Aerodynamics: A Practical Handbook, Haynes Publishing, ISBN 978-1844252305, 2006.
[6] WU Dawei, WU Zheng, ZhANG Landing, HU Jizhong, Safety and Airworthiness Design of Ultra-Light and Very Light Amphibious Aircrafts, The 2nd International Symposium on Aircraft Airworthiness (ISAA 2011), Procedia Engineering 17 (2011) 212 – 225.
[7] Haines, Thomas B. (19 March 2009). "First roadable airplane takes flight". Aircraft Owners and Pilots Association (AOPA). Retrieved 2009-03-19.
[8] Chien-Hsiung Tsai, Lung-Ming Fu, Chang-Hsien Tai, Yen-Loung Huang, Jik-Chang Leong, Computational aero-acoustic analysis of a passenger car with a rear spoiler, Applied Mathematical Modelling, Volume 33, Issue 9, September 2009, Pages 3661-3673.
[9] K.R. Cooper, Bluff-body aerodynamics as applied to vehicles, Journal of Wind Engineering and Industrial Aerodynamics, Volume 49, Issues 1–3, December 1993, Pages 1-21.
[10] Durbin, Dee-Ann (2012-04-02). "Flying car gets closer to reality with test flight". boston.com. Associated Press. Retrieved April 20, 2012.
[11] Mone, Gregory (2008-10). "The Driving Airplane Gets Real". Popular Science: pp. 42–48. Retrieved 2009-03-20.
[12] Phillips, Matt (March 18, 2009). "Flying Car Takes First Flight". The Middle Seat Terminal (The Wall St. Journal). Retrieved 2009-03-19.
[13] Welsh, Jonathan (April 5, 2012). "Flying Car Maker Offers ‘Show Special’ Discount". Driver's Seat. Wall St. Journal. Retrieved 2012-07- 30.
[14] Terrafugia’s Transition street-legal airplane continues flight and drive testing". Terrafugia. Retrieved 30 July 2012.
[15] Ryan, David L. (2009-03-18). "'Flying car' at the Museum of Science". Boston.com (The Boston Globe). Retrieved 2009-03-28.