Kelvin Helmholtz Instability This models an unstable shear flow. The model is initialized with a  strong shear, then is given a small perturbation, resulting in the flow going unstable and the creation of Kelvin-Helmholtz billows. The code outputs the fluid velocity, vorticity and particle trajectories.

Rossby Waves This models the two-dimensional linearized quasigeostrophic potential vorticity equation. The model is initialized with a Gaussian shaped eddy, which quickly disperses into Rossby waves.

Turbulence Spin Up This models the forced-dissipative quasigeostrophic potential vorticity equation as it spins up with a constant forcing.

Anisotropic Turbulence This models the forced-dissipative quasigeostrophic potential vorticity equation on a beta-plane, which, in comparison to the isotropic example above, shows directional dependence in the fluid flow.

Internal Waves This model advects particles using the analytical solution to the three-dimensional linearized internal wave equation for arbitrary stratification. In the two cases shown here, the model is initialized with a single internal mode and the full Garrett-Munk spectrum.

Shoaling surface gravity waves This models surface gravity waves they approach a sandbar. Waves are generated in the deep water on the left of the domain, then propagate towards a shallowing continental slope, before impinging upon a sandbar.