Grabe, Martin and Holz, André and Ziegenhagen, Stefan and Hannemann, Klaus (2014) Numerical Investigation of Two Interacting Parallel Thruster-Plumes and Comparison to Experiment. AIP Conference Proceedings, 1628 (581). Americen Institut of Physics (AIP). doi: 10.1063/1.4902645. ISBN 978-0-7354-1265-1. ISSN 0094-243X.
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Official URL: http://scitation.aip.org/content/aip/proceeding/aipcp/1628?ver=pdfcov
Abstract
Clusters of orbital thrusters are an attractive option to achieve graduated thrust levels and increased redundancy with available hardware, but the heavily under-expanded plumes of chemical attitude control thrusters placed in close proximity will interact, leading to a local amplification of downstream fluxes and of back-flow onto the spacecraft. The interaction of two similar, parallel, axi-symmetric cold-gas model thrusters has recently been studied in the DLR High-Vacuum Plume Test Facility STG under space-like vacuum conditions, employing a Patterson-type impact pressure probe with slot orifice. We reproduce a selection of these experiments numerically, and emphasise that a comparison of numerical results to the measured data is not straight-forward. The signal of the probe used in the experiments must be interpreted according to the degree of rarefaction and local flow Mach number, and both vary dramatically thoughout the flow-field. We present a procedure to reconstruct the probe signal by post-processing the numerically obtained flow-field data and show that agreement to the experimental results is then improved. Features of the investigated cold-gas thruster plume interaction are discussed on the basis of the numerical results.
Item URL in elib: | https://elib.dlr.de/90626/ | ||||||||||||||||||||
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Document Type: | Editorship of Proceedings | ||||||||||||||||||||
Additional Information: | Published: 02 Dezember 2014 | ||||||||||||||||||||
Title: | Numerical Investigation of Two Interacting Parallel Thruster-Plumes and Comparison to Experiment | ||||||||||||||||||||
Authors: |
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Date: | 2014 | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Volume: | 1628 | ||||||||||||||||||||
DOI: | 10.1063/1.4902645 | ||||||||||||||||||||
Page Range: | pp. 581-588 | ||||||||||||||||||||
Publisher: | Americen Institut of Physics (AIP) | ||||||||||||||||||||
Series Name: | AIP Conference Proceedings | ||||||||||||||||||||
ISSN: | 0094-243X | ||||||||||||||||||||
ISBN: | 978-0-7354-1265-1 | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | Plume interaction, DSMC, Patterson probe | ||||||||||||||||||||
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 - Anlagen u. Messtechnik (old) | ||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Spacecraft | ||||||||||||||||||||
Deposited By: | Micknaus, Ilka | ||||||||||||||||||||
Deposited On: | 08 Dec 2014 12:36 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:56 |
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