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Simulation of wall pressure fluctuations on an Airbus-A320 fuselage in cruise flight condition

Hu, Nan and Appel, Christina and Haxter, Stefan and Callsen, Sören and Klabes, Alexander (2019) Simulation of wall pressure fluctuations on an Airbus-A320 fuselage in cruise flight condition. 25th AIAA/CEAS Aeroacoustics Conference, 20.-23.05.2019, Delft, Niederlande. DOI: 10.2514/6.2019-2728

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Wall pressure fluctuations on an Airbus-A320 fuselage in cruise flight condition are simulated using synthetic turbulence generated with the Fast Random Particle-Mesh Method. The fluctuating pressure within the boundary layer is calculated by solving a Poisson equation, which holds actually only for incompressible flows. The acoustic pressure fluctuations in high-speed compressible turbulent boundary layers may become non-negligible, and this acoustic part is not governed by the Poisson equation. However, results from the flight test on the Advanced Research Technology Aircraft Airbus A320 of the German Aerospace Center showed that, the acoustic contribution from turbulent boundary layers to wall pressure fluctuations is negligible compared to the hydrodynamic contribution. Therefore, we are encouraged to compute the fuselage wall pressure fluctuations via the Poisson equation, with which the computation can be more efficiently performed. Three different streamwise positions from front to back of the fuselage corresponding to the flight test measurement positions are calculated. One-and two-point features of the calculated wall pressure fluctuations are analyzed and compared to the flight test results.

Item URL in elib:https://elib.dlr.de/127662/
Document Type:Conference or Workshop Item (Speech)
Title:Simulation of wall pressure fluctuations on an Airbus-A320 fuselage in cruise flight condition
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hu, NanNan.Hu (at) dlr.deUNSPECIFIED
Appel, ChristinaChristina.Appel (at) dlr.deUNSPECIFIED
Haxter, StefanStefan.Haxter (at) dlr.deUNSPECIFIED
Callsen, Sörensoeren.callsen (at) airbus.comUNSPECIFIED
Klabes, AlexanderAlexander.Klabes (at) airbus.comUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2019-2728
Keywords:Simulation, Fuselage pressure fluctuations
Event Title:25th AIAA/CEAS Aeroacoustics Conference
Event Location:Delft, Niederlande
Event Type:international Conference
Event Dates:20.-23.05.2019
Organizer:American Institute of Aeronautics and Astronautics
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 - Systems and Cabin
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Hu, Nan
Deposited On:24 Oct 2019 11:11
Last Modified:19 Nov 2019 08:57

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