The Efficiency of an Electric Turbofan vs. Inlet Area: A Simple Mathematical Model and CFD Simulations Universita' di Modena e Reggio Emilia

Format:

Conference/Event

Author/Creator:

Trancossi, Trancossi, author.

Contributor:

Madonia, Mauro

Conference Name:

SAE 2012 Power Systems Conference (2012-10-30 : Phoenix, Arizona, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Most aircraft designers prefer electric engines with open helices rather than ducted fan units. Open propellers often present a higher propulsive efficiency if compared to electric turbofans. High altitudes and rarefied atmosphere evidence this difference. A mathematical model to improve the performances of a ducted fan unit has presented. It aims to align the performances of the two systems by acting on the air intake of the ducted fan. It defines a simplified method for increasing the efficiency of an electric turbofan. It aims to produce a basic and solid mathematical model, which can apply to the study of this propulsion system. CFD simulations have verified the results. Two CFD codes have used to validate the results. An analysis of mesh independence has performed to ensure a better quality of the results. The presented model aims to reach also a methodological result. It tries to be an example of a plain engineering notation, drawn by basic physics and refusing a disciplinary and speciality symbols

Notes:

Vendor supplied data

Publisher Number:

2012-01-2217

Access Restriction:

Restricted for use by site license