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Experimental Study on Flow Transition in Dual Bell Nozzles

Nürnberger-Génin, Chloé and Stark, Ralf (2010) Experimental Study on Flow Transition in Dual Bell Nozzles. Journal of Propulsion and Power, Vol. 26 (3), pp. 497-502. American Institute of Aeronautics and Astronautics (AIAA). ISSN 0748-4658

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The dual bell nozzle is a concept of altitude adaptive nozzles. The flow adapts to the altitude by separating at the wall inflection at low altitude, and flowing full at high altitude. To understand the phenomenology of the flow by the transition from sea level to high altitude mode, a series of tests have been made under subscale cold flow conditions. Three nozzles with different geometries have been tested. Two of them were successively shortened and driven under the same conditions for each extension length. This study yields the influence of the geometric parameters of the base and extension on the transition conditions. Furthermore a prediction of the transition conditions is given.

Item URL in elib:https://elib.dlr.de/67611/
Document Type:Article
Title:Experimental Study on Flow Transition in Dual Bell Nozzles
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nürnberger-Génin, ChloéChloe.Nuernberger-Genin (at) dlr.deUNSPECIFIED
Stark, RalfRalf.Stark (at) dlr.deUNSPECIFIED
Date:May 2010
Journal or Publication Title:Journal of Propulsion and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Volume:Vol. 26
Page Range:pp. 497-502
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:dual bell nozzle, flow transition, cold flow tests
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 - Raketenantriebtests (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Technologie
Deposited By: Nürnberger-Genin, Chloe
Deposited On:16 Dec 2010 12:24
Last Modified:08 Mar 2018 18:44

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