A Statistical Method to Identify the Main Parameters Characterizing a Pressure Swirl Spray

A. Amoresano; G. Langella; V. Niola; G. Quaremba

doi:10.15866/ireme.v7i6.3883

A Statistical Method to Identify the Main Parameters Characterizing a Pressure Swirl Spray

A. Amoresano^(1*), G. Langella⁽²⁾, V. Niola⁽³⁾, G. Quaremba⁽⁴⁾

^(*) Corresponding author

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Abstract

In this paper a spray behaviour based on digitalised images is presented for a specific fluid the working range of a spray, the main parameters indicating the spray performances, e.g DeLavan data sheet, cone angle, supply pressure and mass flow rate are defined. Such parameters determine the spray behaviour but they don’t give any answer about the main parameter whose variation determines a different pattern of the atomization. To atomize a high viscous fluid and to achieve an efficient lubrication, the drops of the spray jet have to coalesce and form a continuous liquid film in a very short time. To achieve this kind of behaviour the spray has to generate the droplets in a particular range of diameters so, their deformation after the impact, have to minimize the coalescence time. In this paper the behaviour of a pressure swirl spray working with a high viscous fluid its spectra of droplets and a numerical simulation of the internal flow are presented.
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Keywords

Lubrication; Viscous Liquid; Spray Characterization

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