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Development and Validation of a RANS-based Airdrop Simulation Approach

Geisbauer, Sven and Schmidt, Hauke (2015) Development and Validation of a RANS-based Airdrop Simulation Approach. 33rd AIAA Applied Aerodynamics Conference, 22. - 26. Juni 2015, Dallas, USA. DOI: 10.2514/6.2015-3016

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2015-3016

Abstract

During the first few seconds of an airdrop the payload interacts with the flow field behind the aircraft. As most airdrop simulation tools rely on simplified aerodynamic models, e.g. ones with frozen wind field information, DLR has developed an alternative simulation approach. It computes the aerodynamic interference effects during the initial phase of an airdrop and the resulting trajectory. To achieve this the DLR TAU flow solver has been coupled with the multi-body simulation software SIMPACK. The major advantage of this approach, apart from the fact that it does not rely on simplified aerodynamic models, is its multi-body functionality. Thus, the relative motion of bodies, for example between payload and parachute, can easily be examined as kinematic constraints are considered. DLR has successfully demonstrated that its airdrop simulation approach is well-suited to predict the trajectories of different cargo and cargo--parachute configurations. An overview on the methodology, the verification and validation of this approach is presented in the following.

Item URL in elib:https://elib.dlr.de/97238/
Document Type:Conference or Workshop Item (Speech)
Title:Development and Validation of a RANS-based Airdrop Simulation Approach
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Geisbauer, Svensven.geisbauer (at) dlr.deUNSPECIFIED
Schmidt, HaukeUNSPECIFIEDUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2015-3016
Status:Published
Keywords:CFD, MBS, TAU, SIMPACK, coupled simulation, validation, cargo, airdrop, trajectory
Event Title:33rd AIAA Applied Aerodynamics Conference
Event Location:Dallas, USA
Event Type:international Conference
Event Dates:22. - 26. Juni 2015
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 - Military Technologies
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Geisbauer, Sven
Deposited On:20 Jul 2015 16:13
Last Modified:01 Jan 2020 03:00

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