Inline digital holographic microscopy is used to study the spray structure in the near-injector region of three different injectors in supersonic crossflow. Aerated liquid jets at different gas-to-liquid ratio (by mass) are compared to pure liquid jets for a crossflow Mach number of 2. Three-dimensional representations of the present test cases of aerated injection in supersonic crossflow are produced for the first time for the rapidly developing, near-injector region, owing to the capability of holographic diagnostics in probing non-spherical droplets (typical of this region). The results are also presented for the stable, far-field region of the injector (at 50 and 100 injector diameters downstream). The results include distributions of droplet equivalent-diameter and Sauter mean diameter, droplet velocities, spray penetration height, and plume width.
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