Recent research shows that the investigation of particle flows of small particles with diameters smaller than 10 micrometers has emerged as an important field of interest, especially for purposes in the industrial sector. Investigating the behavior, deposition and acting forces of individual particles has become particularly relevant. Understanding theses dynamics is crucial for setting up practical simulations in terms of particle transport drawn from industrial problems. Previous research has already identified numerous forces involved in particle transport e.g. (Sommerfeld, 2000), (Crown, 2005), (Löffler & Raasch, 1992) or (Crown, et al., 2011). However, not all of them have yet been implemented in practice for different reasons. In this case study, acting forces are examined theoretically using a component coming directly from the automotive industry. The examined component is a spout of a vehicle was chosen which is assembled within headlights. Due to its simple structure, it is conductive to analyze the particle-laden flow in different simulation software. The simulation setup for this component less complex, which saves time and reduces costs. The implementation of the examination processes within different simulation software is also analyzed. Simulating a particle-laden flow results in significant computational costs. It is necessary to identify and implement boundary conditions. All results serve as the basis for developing an appropriate simulation model and to create a methodological approach representing particle transport across different scales. The simulation results are validated by comparing them with appropriate experiments. Furthermore, a transfer function was derived to determine the filtering effect of an automotive component. This study combines theoretical background with a practical application.