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Liquid and slurry jets were injected through a circular orifice transverse to a M = 3 airflow. Mass samples of both jets were taken across the plume 30 injector diameters downstream. Pitot and static pressure surveys were taken across the liquid jet. These data allowed the calculation across the liquid jet plume of the Mach number, air mass flow, liquid-to-air ratio, and momentum flux. In the center third of the plume area, there is a core region of subsonic airflow that carries two-thirds of the mass collected in the plume. In the core, the liquid mass flow is nearly constant from side to side at a given height and the average velocity of the liquid is only 30-60% of the local air velocity. A supersonic mixing region surrounds the core region. Comparison with these direct sampling results indicate that correlations developed from photography are inadequate in determining the penetration and width of either jet. The slurry jet showed substantial phase separation. When a 30% mass-loaded slurry of 1-5 p,m silicon dioxide particles mixed with water was injected, the local loading varied from a low of 13% at the bottom of the plume to 100% outside the plume.

Distributions across the plume of transverse liquid and slurry jets in supersonic airflow