2 papers
physics.flu-dyn2026
Lagrangian Ellipsoid Diagnostics in Rough Two-Dimensional Synthetic Flows: Aspect-Ratio Saturation and Reduced Modeling
Michael Chertkov
We develop and test a Lagrangian methodology for extracting finite-cloud geometry and reduced dynamics from particle trajectories. A cloud in a rough, incompressible, two-dimension…
physics.flu-dyn2026
Lagrangian single-particle, multi-particle and topological analyses in turbulent Rayleigh-Bénard convection
Matti Ettel, Roshan J. Samuel, Michael Chertkov +1
We present three-dimensional direct numerical simulations of turbulent Rayleigh-Bénard convection (RBC) in the Lagrangian frame of reference for Rayleigh numbers $10^5 \leq Ra \le…