Suslov, D. I. and Arnold, R. and Haidn, O. J. (2010) Convective and Film Cooled Nozzle Extension for a High Pressure Rocket Subscale Combustion Chamber. 48th AIAA Aerospace Sciences Meeting, 2010-01-04 - 2010-01-07, Orlando, FL.
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Abstract
Experimental investigations have been carried out to study heat transfer, flow separation, and side loads in a subscale nozzle extension. A Vulcain 2-like nozzle geometry has been tested with combustion chamber pressures up to 13 MPa. A new manufacturing technology has been demonstrated with minimized contour deformation during fabrication. Gaseous hydrogen was used to cool the upper part of the nozzle while flowing through helical, rectangular cooling channels. At a nozzle area expansion ratio of approx. 32 the hydrogen has been injected with supersonic velocity as a film to protect the lower part of the nozzle from the influences of the hot gas. Investigations with varying coolant mass flow rates have shown a stable and safe nozzle operation at real rocket engine-like conditions.
Item URL in elib: | https://elib.dlr.de/62530/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Paper) | ||||||||||||||||
Title: | Convective and Film Cooled Nozzle Extension for a High Pressure Rocket Subscale Combustion Chamber | ||||||||||||||||
Authors: |
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Date: | January 2010 | ||||||||||||||||
Open Access: | Yes | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | Film cooling, Subscale combustion chamber, Nozzle extension, Rocket engine | ||||||||||||||||
Event Title: | 48th AIAA Aerospace Sciences Meeting | ||||||||||||||||
Event Location: | Orlando, FL | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Start Date: | 4 January 2010 | ||||||||||||||||
Event End Date: | 7 January 2010 | ||||||||||||||||
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 - Antriebskonzepte (old) | ||||||||||||||||
Location: | Lampoldshausen | ||||||||||||||||
Institutes and Institutions: | Institute of Space Propulsion > Rocket Propulsion Institute of Space Propulsion > Technologie | ||||||||||||||||
Deposited By: | Arnold, Richard | ||||||||||||||||
Deposited On: | 14 Jan 2010 09:10 | ||||||||||||||||
Last Modified: | 24 Apr 2024 19:27 |
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