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Rocket Nozzle Cold-Gas Flow Velocity Measurements Using Laser-Induced Gratings

Hemmerling, B. and Neracher, M. and Kozlov, D. and Kwan, W. and Klimenko, D. and Clauss, W. and Oschwald, M. (2002) Rocket Nozzle Cold-Gas Flow Velocity Measurements Using Laser-Induced Gratings. Journal of Raman Spectroscopy, 33, pp. 912-918.

Full text not available from this repository.

Abstract

The heterodyne detection laser-induced electrostrictive gratings technique was employed for characterization of a flow velocities field in the plume of a rocket nozzle. The intention of the work was to validate CFD calculations, that predict the appearance of a recirculation zone inside the flow at a certain ratio of nozzle and ambient pressures. This zone co-exists with the side loads to the nozzle wall that were observed experimentally as transient forces during the start-up or the shut-down of the thrust chamber. Measurements were performed in cold-gas flows from a subscale thrust-optimized, parabolic nozzle. Nitrogen at stagnation pressures up to 40 bar was supplied to the nozzle. The experimental results clearly proved the existence of a recirculation zone in the flow field, in a reasonable agreement with the predictions of CFD calculations.

Item URL in elib:https://elib.dlr.de/1589/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2002,
Title:Rocket Nozzle Cold-Gas Flow Velocity Measurements Using Laser-Induced Gratings
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hemmerling, B.Paul Scherrer Institute, VillingenUNSPECIFIED
Neracher, M.Paul Scherrer Institute, VillingenUNSPECIFIED
Kozlov, D.General Physics Institute, RAS, MoscowUNSPECIFIED
Kwan, W.UNSPECIFIEDUNSPECIFIED
Klimenko, D.UNSPECIFIEDUNSPECIFIED
Clauss, W.UNSPECIFIEDUNSPECIFIED
Oschwald, M.UNSPECIFIEDUNSPECIFIED
Date:2002
Journal or Publication Title:Journal of Raman Spectroscopy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:33
Page Range:pp. 912-918
Status:Published
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 assignment
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Lohmiller, Monika
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 14:00

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