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Experimental and Numerical Investigation of Cryogenic Jet Atomization

Telaar, J. and Schneider, G. and Branam, R. and Hussong, J. and Mayer, W. (2001) Experimental and Numerical Investigation of Cryogenic Jet Atomization. In: Proceedings 17th Annual Conference on Liquid Atomization & Spray Systems (ILASS). ILASS-Europe 2001, Zürich, 2. - 6. September 2001.

Full text not available from this repository.

Abstract

Unerstanding the complex environment of the rocket combustion chamber involves a good unerstanding of the injection phenomena. This understanding allows the rocket designer to employ time and cost saving modeling tools to better design a higher performing rocket engine. The rocket engine performance is highly dependent on the injection processes within the chamber. This project looked at injection processes in the supercritical regime of the injected fluid, cryogenic nitrogen, in order to better understand realistic conditions in the rocket engines of today. The investigation considers test conditions from 4.0 to 6.0 MPa at two different injection velocities and temperatures. Experimental data taken by Raman imaging and shadowgraphy are compared to computational models for these various test conditions. The test data allow comparisons of density, potential core length, length scales and jet spread angle. The results validate the computational models fairly well. This agreement allows further research to use the models to predict injection behavior under these operating conditions. Further comparisons were made between the various test cases using the computational models considering the effects of pressure, Velocity and temperature variations on the cryogenic jet.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Experimental and Numerical Investigation of Cryogenic Jet Atomization
Authors:
AuthorsInstitution or Email of Authors
Telaar, J.UNSPECIFIED
Schneider, G.UNSPECIFIED
Branam, R.Air Force Research Laboratory, Edwards AFB
Hussong, J.UNSPECIFIED
Mayer, W.UNSPECIFIED
Date:2001
Journal or Publication Title:Proceedings 17th Annual Conference on Liquid Atomization & Spray Systems (ILASS)
Editors:
EditorsEmail
Eidgenössische Technische Hochschule (ETH), ZürichUNSPECIFIED
Status:Published
Event Title:ILASS-Europe 2001, Zürich, 2. - 6. September 2001
Organizer:Eidgenössische Technische Hochschule, Zürich
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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