2 papers
physics.flu-dyn2010
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…
physics.comp-ph2007
Discrete Rotational Symmetry, Moment Isotropy, and High Order Lattice Boltzmann Models
Hudong Chen, Isaac Goldhrish, Steven Orszag
Conventional lattice Boltzmann models only satisfy moment isotropy up to fourth order. In order to accurately describe improtant physical effects beyond the isothermal Navier-Stoke…