CACT is equiped with a high-performance cluster computer with 64 CPUs. It is regularly used for time-dependent or steady-state three-dimensional simulations of thermal spray processes, DC or RF plasmas, coating formation, and other fluid dynamics and heat transfer phenomena. A typical computational domain for these simulations usually includes several millions of cells. Using a regular desktop PC to run these simulations would lead to calculation times ranging from a few weeks to a few months. However, with the cluster computer the simulation can be accomplished in a few hours to a few days depending on the complexity of the phenomena.