|Date: Tuesday, September 17, 2013
Title: Mean-field hydrodynamics and the study of fingering convection in geophysics and astrophysics
Abstract: Fingering convection is a small-scale double-diffusive instability that occurs in fluids whose density depends on two competing components, the most common example being salt and temperature in the ocean's water. It is know to have a strong propensity to drive large-scale secondary instabilities, which can be successfully modeled using mean-field hydrodynamics. I will describe our work on the subject, and illustrate its use in applications such as the formation of thermohaline staircases in the ocean, and mixing chemical species in stellar interiors.
Speaker: Pascale Garaud
Institution: University of California Santa Cruz