From October 20 to 22, 2025, the international conference PARTICLES 2025 took place in Barcelona. The event brought together scientists and industry representatives from various fields to discuss current developments in the field of particle-based simulation methods. One of these methods is the Smoothed Particle Hydrodynamics method (SPH), which is used intensively at ITS for the numerical investigation of complex multiphase flows such as fuel atomization.

This year, the ITS was represented by Niklas Bürkle, Marco Göbel and Karthik Muthukumar. The focus of the ITS contributions was on the further development of the SPH method in various areas, including the introduction of locally adaptive simulation domains, the modeling of turbulent flows with synthetic inflow fluctuations and the more precise description of species transport processes.

In addition to the presentations on the SPH method, which is extensively used at ITS, the conference provided a valuable opportunity to discuss related particle-based methods such as the particle finite element method and their advantages and disadvantages.