Deqing Han, Yong Zeng*, Jintong Gu, Bin Yan
FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.10, pp. 2393-2415, 2024, DOI:10.32604/fdmp.2024.053114
Abstract To accurately predict the film thickness distribution during dynamic spraying performed with air guns and support accordingly the development of intelligent spray painting, the spray problem was analyzed numerically. In particular, the Eulerian-Eulerian approach was employed to calculate the paint atomization and film deposition process. Different spray heights, spray angles, spray gun movement speeds, spray trajectory curvature radii, and air pressure values were considered. Numerical simulation results indicate that the angle of spray painting significantly affects the velocity of droplets near the spray surface. With an increase in the spraying angle, spraying height and spray… More >
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