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Atomization Behavior of Newtonian and Non-Newtonian Fluids with an Impinging Jet Injector

Negri, M. and Ciezki, H. (2014) Atomization Behavior of Newtonian and Non-Newtonian Fluids with an Impinging Jet Injector. Space Propulsion 2014, 19. - 22. Mai 2014, Cologne, Germany.

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Abstract

Impinging jet injectors are often used for the atomization of storable liquid and gelled propellants in rocket engines due to their simplicity, good atomization and mixing characteristics. Gelled propellants are of interest for rocket and ramjet propulsion systems, because of their safety and performance benefits. Objective of this work is to extend the previous researches on impinging jet injectors by studying the atomization behavior of five gels and comparing it to the behavior of Newtonian fluids. In particular a regime diagram is constructed, showing the influence of the generalized Reynolds number and the Weber number on the breakup behavior and the location of different spray regimes. This diagram allows the direct comparison of the atomization behavior of Newtonian and non‐Newtonian fluids for corresponding Reynolds and Weber numbers.

Item URL in elib:https://elib.dlr.de/91655/
Document Type:Conference or Workshop Item (Speech)
Title:Atomization Behavior of Newtonian and Non-Newtonian Fluids with an Impinging Jet Injector
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Negri, M.RA-TRS LAUNSPECIFIED
Ciezki, H.RA-TRS LAUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:atomization; liquid propellant; gelled propellant
Event Title:Space Propulsion 2014
Event Location:Cologne, Germany
Event Type:international Conference
Event Dates:19. - 22. Mai 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Vorhaben ForTrAS - Fortschrittliche Treibstoffe für Anwendungen im Satellitenbereich
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Propellants
Deposited By: Hanke, Michaela
Deposited On:10 Nov 2014 08:50
Last Modified:26 Nov 2014 08:34

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