"Investigation of the Flowfield of a Scramjet Combustor with Parallel H2-Injection through a Strut by Particle Image Displacement Velocimetry."

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 interaction of the fuel and the air flows. PIV recordings are taken without and with ignition of the fuel/oxidizer mixture. Velocities up to 900 m/s were measured. The measured velocity fields are compared with the flow structures in the shadow photographs.