3.7k citations · 3.9k across the 22 of their papers we have counts for
13 papers · 1 filter
Diffusion-limited settling of highly porous particles in density-stratified fluids
Robert Hunt, Roberto Camassa, Richard M. McLaughlin +1
The vertical transport of solid material in a stratified medium is fundamental to a number of environmental applications, with implications for the carbon cycle and nutrient transp…
Simple two-layer dispersive models in the Hamiltonian reduction formalism
R. Camassa, G. Falqui, G. Ortenzi +2
A Hamiltonian reduction approach is defined, studied, and finally used to derive asymptotic models of internal wave propagation in density stratified fluids in two-dimensional doma…
Critical density triplets for the arrestment of a sphere falling in a sharply stratified fluid
Roberto Camassa, Lingyun Ding, Richard M. McLaughlin +3
We study the motion of a rigid sphere falling in a two-layer stratified fluid under the action of gravity in the potential flow regime. Experiments at a moderate Reynolds number of…
Numerical Algorithms for Water Waves with Background Flow over Obstacles and Topography
David M. Ambrose, Roberto Camassa, Jeremy L. Marzuola +3
We present two accurate and efficient algorithms for solving the incompressible, irrotational Euler equations with a free surface in two dimensions with background flow over a peri…
Persisting asymmetry in the probability distribution function for a random advection-diffusion equation in impermeable channels
R. Camassa, L. Ding, Z. Kilic +1
We study the effect of impermeable boundaries on the symmetry properties of a random passive scalar field advected by random flows. We focus on a broad class of nonlinear shear flo…
Cluster formation and self-assembly in stratified fluids: a novel mechanism for particulate aggregation
Roberto Camassa, Daniel M. Harris, Robert Hunt +2
An extremely broad and important class of phenomena in nature involves the settling and aggregation of matter under gravitation in fluid systems. Some examples include: sedimenting…