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Numerical Analysis of CROR Propulsion System Aerodynamics and Aeroacoustics at DLR

Stürmer, Arne (2010) Numerical Analysis of CROR Propulsion System Aerodynamics and Aeroacoustics at DLR. 2nd UTIAS-MITACS International Workshop on Aviation and Climate Change, 27-28 May 2010, Toronto, Canada. (Unpublished)

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Increasing environmental and economic pressures have renewed interest in Contra-Rotating Open Rotor (CROR) propulsion systems as a potential powerplant for future commercial transport aircraft as they promise a step change in specific fuel consumption due to their ultra-high bypass ratio. The primary challenges to be tackled for the realization of such a commercially viable engine relate to the issues of noise emissions and installation e ects with the airframe. The rapid improvement of modern numerical tools for the aerodynamic and aeroacoustic analysis, such as the DLR TAU- and APSIM-Codes, as well as the availability of massively parallel high-performance compute clusters have made high-fidelity numerical simulations of the complex aerodynamics and aeroacoustics of CROR propulsion systems feasible. The application of these tools is expected to greatly enhance the understanding of the underlying flow physics, making them invaluable for the development of these engines into service-ready products. DLR has been actively involved in several CROR-related EU reserach projects, industrial contracts as well as internal research efforts with the aim of building expertise both on the fundamental aerodynamic and aeroacoustic characteristics of this type of engine as well as to develop and establish the numerical tools and approaches used for their analysis and simulation. This presentation will highlight some of the key aerodynamic and aeroacoustic aspects of CROR powerplants and give an overview of DLRs activities in this field.

Item URL in elib:https://elib.dlr.de/67004/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Analysis of CROR Propulsion System Aerodynamics and Aeroacoustics at DLR
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stürmer, Arnearne.stuermer (at) dlr.deUNSPECIFIED
Date:27 May 2010
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:CROR, Open Rotor, Aerodynamics, Aeroacoustics
Event Title:2nd UTIAS-MITACS International Workshop on Aviation and Climate Change
Event Location:Toronto, Canada
Event Type:Workshop
Event Dates:27-28 May 2010
Organizer:University of Toronto Institute for Aerospace Studies (UTIAS) and Mathematics of Information Technology and Complex Systems (MITACS)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Stürmer, Arne
Deposited On:07 Dec 2010 11:19
Last Modified:26 Mar 2015 13:55

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