RT Journal Article ID 5a1c615f0d97c4eb A1 Brummund, U. A1 Scheel, F. T1 IMAGING OF MIXING AND COMBUSTION PROCESSES IN A SUPERSONIC COMBUSTION RAMJET CHAMBER JF International Journal of Energetic Materials and Chemical Propulsion JO IJEMCP YR 2002 FD 2002-01-01 VO 5 IS 1-6 SP 762 OP 772 K1 Supersonic Flow K1 compressible mixing layer K1 mixing layer growth rate enhancement K1 laser based diagnostics AB Mixing and combustion processes within a supersonic flow in a rectangular duct with a centrally mounted plate injector have been investigated. A supersonic air stream is generated inside this duct using the highspeed flow developed by a vitiated air heater. Hydrogen fuel is injected parallel into this flow, with the resultant mixing and combustion investigated using different optical and laser based diagnostic techniques.
Mixing studies have been performed in a non-reacting supersonic flow to investigate both the compressibility effect of a supersonic mixing layer and a shock induced mixing layer enhancement technique. The results show a pronounced decrease of the normalized growth rate of the compressible mixing layer, whereas shock impingement onto the mixing layer results in a slight growth rate enhancement. Planar laser-induced fluorescence of OH has been applied in order to characterize the combustion process within the supersonic flow field. PB Begell House LK https://www.dl.begellhouse.com/journals/17bbb47e377ce023,76f8e14974df93a8,5a1c615f0d97c4eb.html