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Impact of injection distribution on cryogenic rocket engine stability

Deeken, J. and Suslov, D. and Schlechtriem, S. and Haidn, O. (2011) Impact of injection distribution on cryogenic rocket engine stability. In: Proceedings. 4TH EUROPEAN CONFERENCE FOR AEROSPACE SCIENCES, 4. - 8. Jul. 2011, St. Petersburg, Russia.

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Abstract

The present publication addresses the actions taken to stabilize the combustion chamber assembly using a porous injector head described in a former publication2 and the test campaign during which the success of these measures was demonstrated. The first part of this paper deals with the nature of the reported combustion instability. A phenomenological explanation for its occurrence is presented and supported by experimental data. As a measure to counter this instability, two approaches were taken. First, a hydrogen cooled bae segment and second a modification of the injection distribution of the injector head with respect to the presumed cause of the instability. While the bae segment did not prove successful, the test runs with the modified injection pattern demonstrated the stable operation of the 80mm porous injector head over the whole range of operating conditions at hydrogen injection temperatures as low as 45 K. 1. Introduction

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Impact of injection distribution on cryogenic rocket engine stability
Authors:
AuthorsInstitution or Email of Authors
Deeken, J.Jan.Deeken@dlr.de
Suslov, D.Dmitry.Suslov@dlr.de
Schlechtriem, S.Stefan.Schlechtriem@dlr.de
Haidn, O.Oskar.Haidn@dlr.de
Date:2011
Journal or Publication Title:Proceedings
Status:Published
Keywords:cryogenic rocket engine
Event Title:4TH EUROPEAN CONFERENCE FOR AEROSPACE SCIENCES
Event Location:St. Petersburg, Russia
Event Type:international Conference
Event Dates:4. - 8. Jul. 2011
Organizer:EUCASS
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):W - Antriebsystemtechnik - Schubkammertechnologie und Hochdruckverbrennung (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Raketenantriebe
Institute of Space Propulsion > Technologie
Deposited By: Michaela Hanke
Deposited On:12 Dec 2011 09:33
Last Modified:12 Dec 2011 09:33

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