Abstract
Experiment and numerical simulation of a gas-solid flow of cold spray process were conducted, in order to study the radial distribution of the particle-diameter number-fraction along the substrate surface. Experimental result shows that the number fraction of smaller particles decreases on the substrate center of φ1, compared to the number fraction of feed-stock powder. However, the present numerical simulation failed to reproduce the experimental result. It implies that additional model, such as eddy interaction model, needs to be added to simulate the particle trajectory.
