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Application of a Body Force Approach for Numerical Heat Exchanger Simulations within a Hybrid Electric Propulsion Aircraft Concept

Kirz, Jochen and Hübner, Andreas-Rene and Spinner, Sebastian and Weinman, Keith (2022) Application of a Body Force Approach for Numerical Heat Exchanger Simulations within a Hybrid Electric Propulsion Aircraft Concept. In: Deutscher Luft- und Raumfahrt Kongress, pp. 1-9. Deutscher Luft- und Raumfahrt Kongress 2022, 2022-09-27 - 2022-09-29, Dresden, Deutschland.

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Abstract

Hybrid electric propulsion concepts have a great potential to reduce the overall emissions of aviation. For fuel cell applications heat exchangers are required to dissipate the waste heat produced by the fuel cell. The integration of the heat exchangers has an impact on the aircraft aerodynamics which in turn is influencing the flow through the cooler duct. This paper presents a new approach in the DLR TAU Code to model a heat exchanger using the body force method in the Flowsimulator framework. The results are verified using analytic solutions and OpenFoam simulations. The results indicate that the approach is robust and properly resolving the underlying physics. The comparison between the analytic solution and the new heat exchanger model is very good. Fine grid resolutions are necessary to resolve the flow through the cooler properly. First applications for the new method are shown for a fuselage-mounted cooler as well as for a nacelle-mounted cooler.

Item URL in elib:https://elib.dlr.de/190445/
Document Type:Conference or Workshop Item (Speech)
Title:Application of a Body Force Approach for Numerical Heat Exchanger Simulations within a Hybrid Electric Propulsion Aircraft Concept
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kirz, JochenUNSPECIFIEDhttps://orcid.org/0000-0002-1391-1271UNSPECIFIED
Hübner, Andreas-ReneUNSPECIFIEDhttps://orcid.org/0009-0002-1928-5459UNSPECIFIED
Spinner, SebastianUNSPECIFIEDhttps://orcid.org/0000-0002-3661-6814UNSPECIFIED
Weinman, KeithUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:22 September 2022
Journal or Publication Title:Deutscher Luft- und Raumfahrt Kongress
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-9
Status:Published
Keywords:body force heat exchanger numerical simulation integration propeller
Event Title:Deutscher Luft- und Raumfahrt Kongress 2022
Event Location:Dresden, Deutschland
Event Type:national Conference
Event Start Date:27 September 2022
Event End Date:29 September 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Aircraft Technologies and Integration
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Kirz, Jochen
Deposited On:25 Nov 2022 11:45
Last Modified:24 Apr 2024 20:51

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