Here I show our suite of wind-multicloud simulations reported in Antipov et al. 2025, jointly with a novel FoF clump finding analysis. A suite of two simulations developed and run by Wladimir Banda-Barragán. The first is a high-resolution, short-box simulation of a hot supersonic wind interacting with an initially stationary multi-cloud layer, analyzed using a phase-scale approach and reported in Banda-Barragán et al. (2021). The second is a low-resolution, long-box simulation designed to examine the evolution of the cold phase under similar conditions over longer timescales.
This video showcases the time evolution of our low-resolution wind-multicloud simulation. It features a lower resolution and a longer computational box, but is otherwise analogous to the simulation 'sole-k8-M10-rad' reported in Banda-Barragán et al. (2021). The visualization presents a 2D slice through the center of a 3D simulation box, illustrating the temporal evolution of density, temperature, velocity along the shock direction, and a tracer scalar field initially attached in the cold multi-cloud layer.
3D rendering of the largest cloud identified by FoF in the low-resolution 'sole-k8-M10-rad' simulation. The selected time (0.17 Myrs) is shortly after the shock has fully traversed the initial multi-cloud layer. The cloud is a continuous topological structure defined by a temperature threshold below 3×10⁵ K, with a total volume of approximately 200,000 cubic parsecs. The temperature color bar represents logarithmic values.
3D rendering of the largest cloud identified by FoF in the low-resolution 'sole-k8-M10-rad' simulation, at ~1.5 Myrs. The cloud is a continuous topological structure defined by a temperature threshold below 3×10⁵ K, with a total volume of approximately 60,000 cubic parsecs.
3D rendering of a 'medium' sized cloud identified by FoF in the low-resolution 'sole-k8-M10-rad' simulation, at ~1.5 Myrs. The cloud is a continuous topological structure defined by a temperature threshold below 3×10⁵ K, with a total volume of approximately 11,000 cubic parsecs.