3 papers
physics.flu-dyn2026
Frequency spreading of internal wave energy by balanced flows in two dimensions
Nicholas DeFilippis, Oliver Bühler, K. Shafer Smith
Interactions between inertia-gravity waves and balanced flows lead to a spectral diffusion of wave action. Prior work has established that this diffusion is weak across constant fr…
physics.flu-dyn2026
Wave turbulence of inertia--gravity waves: a theory for the oceanic spectrum
Michal Shavit, Oliver Bühler, Jalal Shatah
We present a derivation using kinetic wave theory of the two-dimensional empirical Garrett--Munk spectrum for ocean internal waves, valid at all frequencies including near-inertial…
physics.flu-dyn2023
Kinetic equation for weak interaction of directional internal waves
Michal Shavit, Oliver Bühler, Jalal Shatah
Starting from the two-dimensional Boussinesq equation without rotation, we derive a kinetic equation for weak interaction of internal waves using non-canonical variables. We follow…