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Hot flow testing of dual bell nozzles

Génin, Chloé and Stark, Ralf (2011) Hot flow testing of dual bell nozzles. 49th Aerospace Science Meeting, 4.-7. Jan. 2011, Orlando, Florida.

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The dual bell nozzle offers a simple and efficient altitude adaption through its contour inflection, which insures a symmetrical and controlled separation at sea level and a large area ratio at high altitude. The conditions for the flow transition from one operating mode to the other have been intensively investigated in cold flow conditions. A test campaign has been conducted on two dual bell nozzle geometries to verify the theoretical prediction criterion and to investigate the influence of the temperature variations. Therefore, a thin walled axisymmetric and a planar nozzle were designed and tested under hot flow conditions. Wall temperature measurements have been made using both thermocouples and thermal imaging. The region of the contour inflection was of particular interest for the evaluation of thermal behavior in the nozzle wall.

Item URL in elib:https://elib.dlr.de/68377/
Document Type:Conference or Workshop Item (Paper)
Additional Information:AIAA-2011-0387
Title:Hot flow testing of dual bell nozzles
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Génin, ChloéChloe.Nuernberger-Genin (at) dlr.deUNSPECIFIED
Stark, RalfRalf.Stark (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:expermental study, nozzle flow, dual bell
Event Title:49th Aerospace Science Meeting
Event Location:Orlando, Florida
Event Type:international Conference
Event Dates:4.-7. Jan. 2011
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 > Technologie
Deposited By: Nürnberger-Genin, Chloe
Deposited On:14 Jan 2011 09:49
Last Modified:23 Jan 2012 11:34

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