Influence of Constructive Features of Sprayers on Fluid Flow Parameters

Author Name(s): Larisa A. Zhuravleva, Dmitry A. Solovyev, Roman N. Pavlusenko, Andrey N. Kuznetsov, Sergey V. Istomin
Author Email: rector@sgau.ru

Abstract

The process of spraying a liquid has a wide range of applications in various fields of technology. The spray characteristics primarily rely on design features of the sprayers and their modes of operation. It is known that values of the flow rate and capture radius of the sprayed jets depend on the pressure, nozzle diameter, shape, size and the design features of divider. Currently, these phenomena are still insufficiently studied, however, directly or indirectly observed in practice. Consequently, a significant variety of spray gun designs has appeared. The present paper discusses the impact of the design parameters of nozzles on the flow parameters determining the characteristics of jets. Studies of the interaction of fluid flow with a divider of various shapes are also given.

Introduction

The process of spraying a liquid is from the most common techniques for increasing the specific area of contact with the surface. Spraying the fluid occurs when the jet under pressure is in the gas environment. Given that the general principles of spraying fluid flow depend on the type, shape and principle of operation of the sprayer, we single out three processes of interaction (Fig. 1)

Conclusion

Theoretical studies of the interaction between fluid flow and the structural elements of atomizer made it possible to clarify the method of calculating and selecting design parameters of the atomizers, and to design a nomenclature series for various operating conditions and operating modes. Analysis of the collapse and flight of jets for various sprayers contributed to clarification of the dependencies determining irrigation radius and other characteristics, considering the wind speed and design of the sprayer splitter.

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