The (thermo-)dynamical processes taking place in the experimental devices (e.g., LACIS) are simulated using small scale models. Two different kinds of simulations are distinguished:
Computational fluid dynamics (CFD) simulations using FLUENT/FPM (FLUENT), capable to describe the coupled processes of flow, heat/mass transfer and particle/droplet dynamics are applied to design the experiments, to evaluate the experimental data, and to derive micro physical expressions and parameterizations from the experimental data.
Stand alone box models are applied for a closer look on single processes. For example, the so-called Soccer Ball model (Niedermeier et al. (2011), (2014); Soccer Ball-Modell) has been developed to investigate, whether the ice nucleation process is of singular or stochastic nature (a hypothesis, which has been controversially discussed in the past decades).