Movie 1
Stokeslet solutions for a range of odd to even viscosity ratios, in the limit η_1^o= -2η_2^o . An external force is applied at the origin along the z direction. The curves are streamlines propagating from a set of initial conditions arranged in a circle. As η_2^o is added (γ = η_2^o/μ > 0), the velocity field develops an azimuthal component that changes sign across the z = 0 plane, where the source is located. In the limit of only η_2^o(γ → ∞), the familiar radial component of the flow vanishes.

Movie 2
Sedimentation of a cloud in an odd viscous fluid, in the limit η_1^o = -2η_2^o. Each cloud is initialized with N = 2000 particles, where each particle is treated as a Stokeslet falling under the effect of gravity. Only particles within a few radii of the cloud are tracked. Top-down (A) and side (B) views are shown for three different values of the odd to even viscosity ratio, γ = η_2^o/μ. Part 1. A cloud falling in the absence of odd viscosity, γ = 0. As the cloud leaks particles from its outermost layer into a vertical tail, the center of the cloud is depleted. As a result, the cloud deforms into a torus, and subsequently breaks apart into smaller clouds. Part 2. When the odd viscosity is increased to γ = 1, the particle streamlines acquire a rotating azimuthal component. For this value of γ, the cloud still forms a torus, although the later break-up event only happens in a fraction of the simulation runs. Part 3. In a highly odd viscous fluid (γ = 5), the initially spherical cloud immediately deforms into an ellipsoid. The azimuthal flow within the cloud dominates the radial velocity component. In this regime, the cloud no longer forms a torus, and the instability is suppressed.