25 citations · 97 across the 8 of their papers we have counts for
5 papers · 1 filter
Convection in a mushy-layer along a heated wall
Samuel Boury, Colin R. Meyer, Geoffrey M. Vasil +1
Motivated by the mushy zones of sea ice, volcanoes, and icy moons of the outer solar system, we perform a theoretical and numerical study of boundary-layer convection along a verti…
Thermal Convection over Fractal Surfaces
Srikanth Toppaladoddi, Andrew J. Wells, Charles R. Doering +1
We use well resolved numerical simulations with the Lattice Boltzmann Method to study Rayleigh-Bénard convection in cells with a fractal boundary in two dimensions for and…
Nonlinear mushy-layer convection with chimneys: stability and optimal solute fluxes
Andrew J. Wells, John S. Wettlaufer, Steven A. Orszag
We model buoyancy-driven convection with chimneys -- channels of zero solid fraction -- in a mushy layer formed during directional solidification of a binary alloy in two-dimension…
Finite-sample-size effects on convection in mushy layers
Jin-Qiang Zhong, Anthony T. Fragoso, Andrew J. Wells +1
We report theoretical and experimental investigations of the flow instability responsible for the mushy-layer mode of convection and the formation of chimneys, drainage channels de…
Optimal and hysteretic fluxes in alloy solidification: Variational principles and chimney spacing
Andrew J. Wells, J. S. Wettlaufer, Steven A. Orszag
We take a numerical approach to analyze the mechanisms controlling the spacing of chimneys -- channels devoid of solid -- in two-dimensional mushy layers formed by solidifying a bi…