| An experimental study of liquid jet injection into subsonic air crossflows is conducted. The aim of the study is to relate the droplet size distribution to flow parameters, including jet and air velocities, pressure and temperature. Furthermore, the aim is to find a useful expression that would summarize the general behavior of the spray. Therefore, an experimental setup is developed, which could withstand high temperatures and pressures such as those experienced inside gas turbine engines. A TSI Phase Doppler Droplet Analyzer is used to measure droplet size and velocity distributions in two directions. Sixty four different experiments are performed at 30 and 55 psia and 300°C with two nozzle diameters of 0.018" and 0.0225" with L/D of 15. The collected data is used to show the effects of various breakup mechanisms on atomization. Finally, a correlation is derived that relates global mean droplet size to the flow variables. |
