声激励对空心圆锥喷嘴喷雾的影响

Objective Research the influence and the control of the spraying by the pattern of sound. Methods Application of PIV techniques to obtain mechanism of occurrence and development on entrainment vortex in response to different excitation frequencies and spray pressure. Results The harmonic energy effect on the vortex structures of atomization nozzle acoustic excitation in the flow field is not obvious when the acoustic excitation frequency is very low. At the acoustic excitation frequency up to 160Hz, the spray flow vortex structure has been enhanced with increasing frequency. Conclusion With the acoustic excitation frequency increased, the effect of vortex structure has been gradually increased.