Geisbauer, Sven and Bier, Niko and Kirz, Jochen and Roosenboom, Eric (2013) Validation of the Flow Topology Around Several Airdrop Cargo Configurations at Static Conditions. American Institute of Aeronautics and Astronautics. 31st AIAA Applied Aerodynamics Conference, 2013-06-24 - 2013-06-27, San Diego, USA. doi: 10.2514/6.2013-3155.
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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2013-3155
Abstract
A numerical study was carried out to assess the interference effects between the wake of a transport aircraft and several generic cargo bodies during the early stage of an airdrop scenario. Based on experimental data and preceding numerical simulations distinct positions of the trajectory being subject to strong interference effects were stati- cally reproduced. The flow field around the bodies was experimentally investigated using stereoscopic Particle Image Velocimetry and compared to steady and unsteady Reynolds- averaged Navier-Stokes (RANS) computations. The latter were carried out using the unstructured DLR TAU code. The primary focus is to assess the suitability, accuracy and the limitations of RANS methods in such challenging flow conditions. Therefore, the influence of several turbulence models was investigated and compared to experimental field velocity data. Although deviations in the wake of the bodies were observed, the qualitative agreement between the steady simulations and experiment was very good. Quantitatively, however, the steady approach leaves room for further improvements. The gap to the experimental data could partially be reduced in applying unsteady RANS methods.
Item URL in elib: | https://elib.dlr.de/83443/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Additional Information: | DOI: 10.2514/6.2013-3155 | ||||||||||||||||||||
Title: | Validation of the Flow Topology Around Several Airdrop Cargo Configurations at Static Conditions | ||||||||||||||||||||
Authors: |
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Date: | June 2013 | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
DOI: | 10.2514/6.2013-3155 | ||||||||||||||||||||
Page Range: | pp. 1-17 | ||||||||||||||||||||
Publisher: | American Institute of Aeronautics and Astronautics | ||||||||||||||||||||
Series Name: | Conference Proceedings online | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | CFD, PIV, TAU, 3D, RSM, validation, cargo, airdrop, experiment, interference effects, wake | ||||||||||||||||||||
Event Title: | 31st AIAA Applied Aerodynamics Conference | ||||||||||||||||||||
Event Location: | San Diego, USA | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Start Date: | 24 June 2013 | ||||||||||||||||||||
Event End Date: | 27 June 2013 | ||||||||||||||||||||
Organizer: | AIAA | ||||||||||||||||||||
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 - Military Technologies (old) | ||||||||||||||||||||
Location: | Braunschweig , Göttingen | ||||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Transport Aircraft | ||||||||||||||||||||
Deposited By: | Geisbauer, Sven | ||||||||||||||||||||
Deposited On: | 16 Jul 2013 10:39 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:49 |
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