2 papers
physics.flu-dyn2025
Curvature-based energy spectra revealing flow regime changes in Rayleigh-Bénard convection
Michael Mommert, Philipp Bahavar, Robin Barta +3
We use the local curvature derived from velocity vector fields or particle tracks as a surrogate for structure size to compute curvature-based energy spectra. An application to hom…
physics.flu-dyn2025
The Lagrangian kinetic energy cascade in Rayleigh-Bénard convection
Robin Barta, Claus Wagner, Ron Shnapp
Rayleigh-Bénard convection at high Rayleigh number exhibits turbulence superimposed on large-scale circulation. While buoyancy forces drive the flow at certain scales, how kinetic…