VI.4. The velocity field in an air-blasted liquid sheet

摘要

The instability growth that causes a liquid sheet break up when it is subjected to high velocity parallel air streams has been analyzed in some recent experimental studies. Most of tem have been based on visual observation from instantaneous spray images or oscillation frequency measurements. The purpose of this work is the study of the air field near the sheet interfaces to improve the understanding of the air/liquid interaction. To this end, flow visualization and particle image velocimetry (PIV) have been used to ascertain the flow structure and to obtain two-component velocity maps of planar sections of the air streams.