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The Flow of Gels through a Nozzle like Geometry

Stiefel, Alexander and Kirchberger, Christoph and Ciezki, Helmut and Kurilov, Maxim and Kurth, Guido (2020) The Flow of Gels through a Nozzle like Geometry. International Journal of Energetic Materials and Chemical Propulsion. Begell House. doi: 10.1615/IntJEnergeticMaterialsChemProp.2019028136. ISSN 2150-766X. (In Press)

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In the following paper a test setup to analyze the flow of gels in a constriction is presented as well as some results of the tests performed with this setup. Different gels and a Newtonian fluid were pressed through a test geometry, which is a pipe with a construction. The pressure loss and the velocity field were measured. It was shown, that gels can be advantageous to Newtonian fluids under certain boundary conditions regarding the pressure loss through the tested geometry. Since different boundary conditions cause different flow patterns, some flow patterns are shown and reference to some other analysis in literature is given. The test geometry was designed to be similar to a nozzle and therefore assumptions could be made regarding the influence of the flow pattern on the injection process in a combustion chamber.

Item URL in elib:https://elib.dlr.de/133860/
Document Type:Article
Title:The Flow of Gels through a Nozzle like Geometry
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Stiefel, AlexanderAlexander.Stiefel (at) dlr.dehttps://orcid.org/0000-0002-7621-0886
Kirchberger, ChristophChristoph.Kirchberger (at) dlr.dehttps://orcid.org/0000-0002-7574-2581
Ciezki, HelmutHelmut.Ciezki (at) dlr.dehttps://orcid.org/0000-0002-1539-4677
Kurilov, MaximMaxim.Kurilov (at) dlr.dehttps://orcid.org/0000-0003-0256-7126
Kurth, GuidoBayern-Chemie, Aschau am Inn, DUNSPECIFIED
Journal or Publication Title:International Journal of Energetic Materials and Chemical Propulsion
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1615/IntJEnergeticMaterialsChemProp.2019028136
Publisher:Begell House
Status:In Press
Keywords:gel, gelled propellants, non-newtonian, rheology, flow of gel, constriction
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):Grüne Geltreibstoffe für Raumfahrtrelevante Anwendungen (GGeRA) (old), Raketenstufe für Forschungsraketen (old), L - Military Technologies (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Institute of Space Propulsion > Propellants
Deposited By: Kirchberger, Dr. Christoph
Deposited On:27 Jan 2020 10:39
Last Modified:27 Jan 2020 10:39

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