Award details

Impact of spray droplets on biological surfaces

Reference	BBS/E/S/00000457
Principal Investigator / Supervisor	Professor Paul Miller
Co-Investigators / Co-Supervisors
Institution	Silsoe Research Institute
Department	Silsoe Research Institute Department
Funding type	Research
Value (£)	202,400
Status	Completed
Type	Institute Project
Start date	01/04/2001
End date	31/03/2003
Duration	24 months

Abstract

The impact of a droplet on a target is an important part of the process governing the application of chemicals to surfaces. It influences the final form of the deposit,and this can have significant implications for the efficiency of the application.This project will study the case of a single phase liquid droplet, with and without surfactants, impacting on a range of surfaces, through a combination of modelling and experimental observation. The droplet sizes to be considered will be 50 microns upwards, with velocities greater than terminal velocities to represent a range of spray application processes. Objectives are to identify and further develop models of impaction, to develop methods of quantifying droplet impact and to quantifiy the effect of liquid and surface properties on the impact process. The proposed work plan involves (1) modelling droplet impaction by identifying models appropriate to the size and velocities underconsideration and determining what modifications are needed and (2) model validation through (i) developing observation techniques, including identifying techniques for producing droplets with the required range of sizes and velocities (ii) quantifying the impaction process by identifying relevant parameters and (iii) evaluating surfactant/surface effects.

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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