Numerical modeling plays a central role in planetary science, providing tools to investigate physical processes that span a wide range of spatial and temporal scales and can be inaccessible to direct observation. From the thermal and dynamical evolution of planetary interiors to surface and subsurface processes, impact phenomena, volatile material transport, and atmospheric dynamics, numerical approaches allow us to explore the complex interactions shaping planetary bodies and environments.

This focus session aims to bring together recent developments and applications of theoretical and numerical modeling within the Italian planetary science community. We welcome contributions addressing a broad range of planetary processes, including interior dynamics and evolution, thermal modeling of planetary surfaces and subsurfaces, impact physics and crater formation, hydrodynamics, volatile and material transport, atmospheric and exospheric processes, plasma-related phenomena, and the coupling between different physical processes and modeling frameworks. By merging expertise across approaches and environments, the session will foster interdisciplinary discussion on current challenges, methodological advances, and future directions in computational planetary science.