Characterization of Liquid Jets-In-Crossflow Under High Temperature, High Velocity Non-Oscillating and Oscillating Flow Conditions

Abstract

Experiments were conducted for the purpose of characterizing a transversely injected liquid jet into a high temperature and velocity crossflow in a unique experimental test facility. Two-dimensional Mie scattering imaging and a laser-line Mie scattering measurement were employed to characterize the behavior of the liquid jet under both non-oscillating and oscillating flow conditions at various crossflow velocities and liquid to gas momentum flux ratios at the crossflow temperature of 650C. The test liquid used in the experiment was the aviation fuel Jet-A. Characterization of the liquid jet under non-oscillating crossflow conditions was first conducted to establish the similarities and differences of the current study to previous researches, providing a baseline for comparison to the characteristics of the liquid jet under oscillating flow conditions. Characterization of the liquid jet within an oscillating environment was also conducted to understand the effects of acoustics on the behavior of the liquid jet. The results show various similarities and differences in the liquid jet behavior under non-oscillating and oscillating flow conditions. The data collected provides information useful in understanding vaporizing jet-in-crossflow, while also providing the groundwork for more detailed studies involving this unique experimental facility.