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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v3.i1-6.510
pages 498-503

INVESTIGATION OF THE FLOWFIELD OF A SCRAMJET COMBUSTOR WITH PARALLEL H2-INJECTION THROUGH A STRUT BY PARTICLE IMAGE DISPLACEMENT VELOCIMETRY

Michael Oschwald
DLR German Aerospace Center, Lampoldshausen, Baden-Württemberg, 74239, Germany
R. Guerra
DLR-Institute for Chemical Propulsion and Engineering, D-74239 Hardthausen, Germany
W. Waidmann
DLR-Institute for Chemical Propulsion and Engineering, D-74239 Hardthausen, Germany

RÉSUMÉ

The flow field in a supersonic combustor with H2-injection through a strut is investigated by particle image displacement velocimetry. The flowfield is characterized by shock trains which originate at the leading edge of the strut, an expansion originating at the strut base and the interaction of fuel and air flows. PIV recordings are taken without and with ignition of the fuel/oxidizer mixture. Velocities up to 900 m/s were measured. Measured velocity fields are compared with flow structures obtained from shadow photographs.


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