RESEARCH INTERESTS

My research interests are in applied mathematics, which means just about anything. Most problems are interesting, and many of them can be couched in a mathematical language that provides insight into them. More specifically, my interests have in the past focused on astrophysics, chaos and dynamical systems, and fluid mechanics with particular application to geophysical fluids.

Depending on my current level of funding, I am happy to take on graduate students for both a M.Sc. and Ph.D. Look here for more information

I am closely associated with the Geophysical Fluid Dynamics summer school, Woods Hole Oceanographic Institution, and have directed various summer programs ("Astrophysical and Geophysical Flows as Dynamical Systems", "Stirring and Mixing", "Conceptual Models of the Climate", "Non-Newtonian GFD", "Tides", "Perspectives and Challenges in GFD", "Swirling and Swimming in Turbulence").

Short descriptions of some of my current research themes follows below, together with links to some relevant articles:

Non-Newtonian Fluid Dynamics And Applications In Geophysics
Skinny currents, tremor and dambreaks
Granular flow
Roll waves
Two-phase and poro-elastic problems
Large and noisy dynamical systems
Pattern Formation In Systems With Continuous Spectra And Fluid Shear Flows
Mixing, Tides And Convection
Stratified Shear Flow
Fluid-Structure Interaction
Cornstarch
Sand Ripples, Snails and More
Jet impact

Toys:
Washboarding at home I
Washboarding at home II
Washboarding at home IIIa (ultrasound gel)
Washboarding at home IIIb (ultrasound gel)
Washboarding at home IIIc (ultrasound gel)
The skipper
The slosher, part A
The slosher, part B

Some "highlights":
Single wave model
From episodic avalanching to continuous flow in a rotating granular drum
Recent developments in viscoplastic fluid mechanics
Asymptotic methods for viscoplastic fluids