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Launch Vehicle Base Flow Analysis Using Improved Delayed Detached Eddy Simulation

Lüdeke, Heinrich and Mulot, Jean Daniel and Hannemann, Klaus (2015) Launch Vehicle Base Flow Analysis Using Improved Delayed Detached Eddy Simulation. AIAA Journal, 53 (9), pp. 2454-2471. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J053297. ISSN 0001-1452.

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/1.J053297


During the ascent of carrier rockets the massively separated flow in the base region generates highly unsteady wall pressure fluctuations. The resulting dynamic loads can induce a response of the launcher structure called buffeting. In order to study the characteristics of the base flow behind three different configurations of the Ariane~5 launcher, Improved Delayed Detached Eddy Simulation (IDDES) in combination with unstructured grids is used. The objective of this work is to demonstrate the ability of IDDES to describe the impact of the connecting struts between central stage and boosters and to analyze the efficiency of a buffeting reduction device in the base region. Comparisons of the numerical results with time resolved and time averaged surface pressure data and PIV measurements obtained from the DNW High Speed Wind Tunnel are carried out in good agreement.

Item URL in elib:https://elib.dlr.de/99930/
Document Type:Article
Title:Launch Vehicle Base Flow Analysis Using Improved Delayed Detached Eddy Simulation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lüdeke, Heinrichheinrich.luedeke (at) dlr.deUNSPECIFIED
Mulot, Jean Danieldaniel.mulot (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Date:23 July 2015
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.J053297
Page Range:pp. 2454-2471
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:computational fluid dynamics (CFD), improved delayed detached eddy simulation (IDDES), launch vehicle base flow, base buffeting, buffeting reduction device
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Lüdeke, Dr.-Ing. Heinrich
Deposited On:25 Nov 2015 10:19
Last Modified:08 Mar 2018 18:42

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