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Characterisation of Cryogenic Jets at Supercritical Conditions

Branam, R. and Telaar, J. and Hussong, J. and Mayer, W. (2001) Characterisation of Cryogenic Jets at Supercritical Conditions. In: Spray 2001. 6. Workshop über Techniken der Fluidzerstäubung und Untersuchungen von Sprühvorgängen, 6, II.4-1-II.4-8. Spray 2001. 6. Workshop über Techniken der Fluidzerstäubung und Untersuchungen von Sprühvorgängen, Hamburg-Harburg, 14. - 15. November 2001. ISBN 3-930400-46-1.

Full text not available from this repository.

Abstract

Diesel engines, gas turbines, rocket engines and many others rely on high pressure combustion to produce high power energy conversion and thrust. Increasing performance of these engines requires high pressure injection often above propellant critical pressures. Understanding how the propellants react and perform under these conditions allows the designer to employ time and cost saving modelling tools to design a higher performing, lower cost device. Much work has been accomplished in this area as can be seen in references (1,2 and 3 and 4), but a strong understanding of the injection process and the development of reliable modelling tools still requires much research. This investigation takes a step in this direction using liquid nitrogen as a liquid oxygen simulant (5). The investigation considers test conditions at 4.0, 5,0 and 6.0 MP at two different nominal injection velocities (2 and 5 m/s) and temperatures (120 K and 130 K). Experimental density measurements taken by Raman imaging are compared to computational models. The measured results compare fairly well with the computational results specifically in the density profiles. The supercritical jet is extremely sensitive to temperature variations and injection temperature.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Characterisation of Cryogenic Jets at Supercritical Conditions
Authors:
AuthorsInstitution or Email of Authors
Branam, R.UNSPECIFIED
Telaar, J.UNSPECIFIED
Hussong, J.UNSPECIFIED
Mayer, W.UNSPECIFIED
Date:2001
Journal or Publication Title:Spray 2001. 6. Workshop über Techniken der Fluidzerstäubung und Untersuchungen von Sprühvorgängen
Volume:6
Page Range:II.4-1-II.4-8
Editors:
EditorsEmail
Eggers, R.UNSPECIFIED
Peric, M.UNSPECIFIED
Hamburg-Harburg, Technische UniversitätUNSPECIFIED
Series Name:Spray 2001
ISBN:3-930400-46-1
Status:Published
Keywords:optische Strömungsanalysen, Fluidzerstäubung
Event Title:Spray 2001. 6. Workshop über Techniken der Fluidzerstäubung und Untersuchungen von Sprühvorgängen, Hamburg-Harburg, 14. - 15. November 2001
Organizer:Technische Universität Hamburg-Harburg
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
Institute of Combustion Technology
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 15:58

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