Taguchi Design And Analysis Of 3D-Computer Fluid Dynamic (CFD) Experiments (TDACE) For The Optimization Of Air-Cap Configuration In Arc Spraying

Taguchi Design and Analysis of 3D-Computer Fluid Dynamic (CFD) Experiments (TDACE) for the Optimization of Air-Cap Configuration in Arc Spraying W. Tillmann, M. Abdulgader, N. Anjami CFD approach is adopted in this work, using L16-taguchi matrix, to study the effect of different atomization gas outlet configurations on the gas velocity, jet divergence, and pressure distribution at cap outlet. The studied variables are primary and secondary atomization gas pressure as process parameters. The other variables in this study are the position, number, and angle of the outlet holes of SG. The effect of the process variables and geometrical design variations are analyzed on the obtained gas flow characteristics. Increasing the number of the SG outlet holes leads to higher gas velocity at cap outlet. PG shows the highest effect on the obtained gas velocity. Furthermore, the increased PG led to plume of two separated flow cores caused by the interfering wires.