Analysis and comparisons of various models in cold spray simulations : towards high fidelity simulations

Abstract: Cold spray technology is a quickly growing manufacturing technology which impacts lots of industries. Despite many years of studies about the comprehension of the phenomena and the improvements of the performance of the system, ensuring high fidelity simulations remains a challenge. We propose in this work a detailed high fidelity modeling and simulations giving more insight of the phenomena appearing in cold spray such as turbulence, oblique shocks, bow shocks, fluctuations, particles motion and particles impacts. It is mainly based on a richer model known as the Detached Eddy Simulation (DES) model. Moreover, we present several analysis of various existing models for both validations and comparisons purposes. Finally, this high fidelity framework will allow us to deal with a new configuration showing an improved performance assessed with the previous models.