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Aerodynamic Fact Check of eVTOLs

Wilke, Gunther Andreas (2018) Aerodynamic Fact Check of eVTOLs. 18. ONERA - DLR Aerospace Symposium, 03 - 05 July 2018, Bonn, Germany.

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Abstract

Today`s demand of urban mobility is constantly growing due to the demographic changes observed in metropolitan areas. New concepts such as electrical vertical take-off and landing (eVTOL) vehicles are currently emerging. Yet, the question is, whether these vehicles will prevail. While the design of those vehicles is highly multidisciplinary, this work focuses on the aerodynamics governing these small air taxi concepts. Re-engineering two vehicles configurations loosely based on existing designs are investigated to grant more insights into the advantages and disadvantages of RPM controlled thrust as well as distributed electric propulsion (DEP). The RPM control allows for high Figure of Merit in a wide range of thrust, while distributing multiple ro- tors over a tilt-wing configuration reduces the power requirements in hover as well as cruise flight. The outcome of this study is that both designs are aerodynamically feasible and grant the performance promised, however that he aerodynamics will likely not be the sole design driver.

Item URL in elib:https://elib.dlr.de/125003/
Document Type:Conference or Workshop Item (Speech)
Title:Aerodynamic Fact Check of eVTOLs
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wilke, Gunther AndreasGunther.Wilke (at) dlr.dehttps://orcid.org/0000-0002-1915-5307
Date:6 July 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:eVTOL, CFD, urban air mobility, UAM, distributed electric propulsion (DEP)
Event Title:18. ONERA - DLR Aerospace Symposium
Event Location:Bonn, Germany
Event Type:Workshop
Event Dates:03 - 05 July 2018
Organizer:ONERA - DLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, BS
Deposited By: Wilke, Gunther Andreas
Deposited On:19 Dec 2018 11:08
Last Modified:19 Dec 2018 11:08

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