Experimental investigation of droplet impact on artificial and leaf surfaces

Experimental investigation of spray droplets impacting on different surfaces (viz. cabbage, Teflon, leek, apple and pear) was performed with the aim of a high speed camera. Droplets of water or the pesticide Plant Invigorator (2 ml/l) were produced with agricultural nozzles (viz. teejet XR 11001VS, 11004VS, 11008VS and AI11008VS) moving at an application speed of 2 m/s. The droplets were visualised just before impact on the surface and their diameter and velocity was measured.