Sand & dust ingestion is a critical issue for aero engines as the particles can deposit on surfaces in the hot sections of the engine. These deposits can block cooling holes, damage to components and alter the gas path geometry leading to performance loss and potentially power failure. A number of sand particle deposition models have been developed in recent years with the goal of developing a predictive tool for sand deposition. These models utilize different approaches for modeling the particle-surface physics and were developed using either purely material property theories or experimental data from different sources or both. Comparing these models can be difficult due to differences in material assumptions and different test cases. In this study, a CFD simulation was conducted of the Virginia Tech Aerothermal rig experiments and some selected depositions models were applied. The results were compared to each other and the rig results so that their accuracy, performance, and recommended improvements could be discussed.