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Characterization of Flow and Spray Behavior of Gelled Fuels with Regard to Air Blast and Impinging Jet Atomizers

Ciezki, H. and Robers, A. and Schneider, G. (2002) Characterization of Flow and Spray Behavior of Gelled Fuels with Regard to Air Blast and Impinging Jet Atomizers. In: RTO AVT, Specialist Meeting on "Advances in Rocket Propellants Performance, Life and Disposal for Improved System Performance and Reduced Cost", Aalborg. RTO AVT, Specialist Meeting on "Advances in Rocket Propellants Performance, Life and Disposal for Improved System Performance and Reduced Cost", Aalborg, Denmark, 23 - 26 September 2002.

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Abstract

The spray behavior of different gelled fuels based on Jet A-1, has been investigated in two different atomizer types, i.e. an air blast atomizer with an annular coaxial air flow and a doublet like-on-like impinging jet atomizer. The characteristics of the jet breakup process of both injector types have been visualized by means of the shadowgraph technique. For the air blast atomizer different breakup regimes have been observed with increasing momentum flux ratio for the 3 investigated fuels. For the impinging jet atomizer the formation of a gel sheet has been observed, which is located at the intersection point of both gel jets and which is perpendicular oriented to the injector plane. Also the flow behavior in cylindrical and slightly conical tubes of gelled fuels, whose viscosity is shear rate dependent, has been described with analytical assumptions.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Characterization of Flow and Spray Behavior of Gelled Fuels with Regard to Air Blast and Impinging Jet Atomizers
Authors:
AuthorsInstitution or Email of Authors
Ciezki, H.UNSPECIFIED
Robers, A.UNSPECIFIED
Schneider, G.UNSPECIFIED
Date:2002
Journal or Publication Title:RTO AVT, Specialist Meeting on "Advances in Rocket Propellants Performance, Life and Disposal for Improved System Performance and Reduced Cost", Aalborg
Editors:
EditorsEmail
North Atlantic Treaty Organization, UNSPECIFIED
Status:Published
Event Title:RTO AVT, Specialist Meeting on "Advances in Rocket Propellants Performance, Life and Disposal for Improved System Performance and Reduced Cost", Aalborg, Denmark, 23 - 26 September 2002
Organizer:RTO, Paris
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):E -- no assignement
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Monika Lohmiller
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 14:00

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