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Numerical Near-Field Simulations of Low Boom Aircraft Concepts

Kirz, Jochen (2020) Numerical Near-Field Simulations of Low Boom Aircraft Concepts. In: Deutscher Luft- und Raumfahrtkongress 2020. Deutscher Luft- und Raumfahrtkongress 2020, 01.-03.09.2020, Bonn, Deutschland (online). doi: 10.25967/530263.

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Official URL: https://doi.org/10.25967/530263


This paper presents the setup of the DLR TAU code for sonic boom near-field simulations and results obtained for the low-boom geometries developed within the EC project RUMBLE. A process for surrogate-based low-boom low-drag fuselage design based on a near-field target pressure signature is described. The focus of the paper is the robust parameterization of the fuselage geometry to prevent the generation of irregular shapes as well as the modular grid generation approach that significantly reduces the time to generate the grids. The numerical results of four RUMBLE milestone shape evolutions with flow through nacelles are presented and geometrical influences on the near-field pressure signatures are analyzed. It is shown that the pressure signatures for shape derivatives with powered engine boundary conditions or with modifications for wind tunnel measurements are very similar to the signatures of the original shapes.

Item URL in elib:https://elib.dlr.de/137848/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Near-Field Simulations of Low Boom Aircraft Concepts
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kirz, JochenUNSPECIFIEDhttps://orcid.org/0000-0002-1391-1271139342119
Date:20 November 2020
Journal or Publication Title:Deutscher Luft- und Raumfahrtkongress 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Sonic Boom RUMBLE Near-Field Optimization
Event Title:Deutscher Luft- und Raumfahrtkongress 2020
Event Location:Bonn, Deutschland (online)
Event Type:international Conference
Event Dates:01.-03.09.2020
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Kirz, Jochen
Deposited On:27 Nov 2020 07:19
Last Modified:26 Jul 2023 14:14

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