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1987-11-01
Technical Paper
872090
C Arcoumanis, A D Gosman, J H Whitelaw, Y Y Tsui, K Y Wong
Calculations and measurements are presented of the velocity and “fuel” concentration fields in a motored axisymmetric engine where the fuel spray was simulated by a transient gaseous (Freon-12) jet injected into the disk chamber through a single-hole nozzle mounted on the centrally located inlet/exhaust valve. Freon concentration was measured by laser Rayleigh scattering and predicted by a multi-dimensional method. The measured jet was found to spread appreciably faster than the predicted one, for reasons which are not well understood.
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