Research Summaries, click for more details
3D measurements of flow between oscillating grids: Two grids
oscillate through water creating fascinating turbulent flows. High speed
measurements are taken to determine properties universally true for turbulence.
Transient Dynamics of Granular Gasses: We are exploring whether
granular hydrodynamic models that have been successful in describing
steadily driven granular gasses can also predict the dynamics during
gravitational collapse. In a quasi-2D granular
gas driven by vertical vibration we can measure the trajectories of
every particle in the system. We hope to uncover details about how
the hydrodynamic models begin to fail as the system approaches the dense static state.
3D measurements of the flow around oscillating spheres: Spheres
oscillating in a fluid interact through streaming flows, and can produce
fascinating dynamical states (PRL 88:234301, 2002). Measurements of the 3D flow
fields responsible for these interactions show flow structures and flow rates
that remain unexplained.
|
