Open Access

ARTICLE

Influence of Spray Gun Position and Orientation on Liquid Film Development along a Cylindrical Surface

by Jiuxuan Liu, Yong Zeng^*, Xueya Zhao, Hongbo Chen, Bin Yan, Qian Lu

School of Mechanical Engineering, Yancheng Institute of Technology, Yancheng, 224051, China

* Corresponding Author: Yong Zeng. Email:

(This article belongs to the Special Issue: CFD Modeling and Multiphase Flows)

Fluid Dynamics & Materials Processing 2023, 19(10), 2499-2518. https://doi.org/10.32604/fdmp.2023.028413

Received 20 December 2022; Accepted 14 March 2023; Issue published 25 June 2023

Abstract

A method combining computational fluid dynamics (CFD) and an analytical approach is proposed to develop a prediction model for the variable thickness of the spray-induced liquid film along the surface of a cylindrical workpiece. The numerical method relies on an Eulerian-Eulerian technique. Different cylinder diameters and positions and inclinations of the spray gun are considered and useful correlations for the thickness of the liquid film and its distribution are determined using various data fitting algorithms. Finally, the reliability of the proposed method is verified by means of experimental tests where the robot posture is changed. The provided correlation are intended to support the optimization of spray-based coating applications.

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