Grabe, Martin und Holz, André und Ziegenhagen, Stefan und 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.
Dieses Archiv kann nicht den Volltext zur Verfügung stellen.
Offizielle URL: http://scitation.aip.org/content/aip/proceeding/aipcp/1628?ver=pdfcov
Kurzfassung
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.
elib-URL des Eintrags: | https://elib.dlr.de/90626/ | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Tagungsband | ||||||||||
Zusätzliche Informationen: | Published: 02 Dezember 2014 | ||||||||||
Titel: | Numerical Investigation of Two Interacting Parallel Thruster-Plumes and Comparison to Experiment | ||||||||||
Autoren: |
| ||||||||||
Datum: | 2014 | ||||||||||
Open Access: | Nein | ||||||||||
In SCOPUS: | Nein | ||||||||||
In ISI Web of Science: | Nein | ||||||||||
Band: | 1628 | ||||||||||
DOI: | 10.1063/1.4902645 | ||||||||||
Seitenbereich: | Seiten 581-588 | ||||||||||
Verlag: | Americen Institut of Physics (AIP) | ||||||||||
Name der Reihe: | AIP Conference Proceedings | ||||||||||
ISSN: | 0094-243X | ||||||||||
ISBN: | 978-0-7354-1265-1 | ||||||||||
Stichwörter: | Plume interaction, DSMC, Patterson probe | ||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||
DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||||
Standort: | Göttingen | ||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags