105 citations · 243 across the 7 of their papers we have counts for
7 papers
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…
Lattice Boltzmann Method for Electromagnetic Wave Propagation
Shravan M. Hanasoge, Sauro Succi, Steven A. Orszag
We present a new Lattice Boltzmann (LB) formulation to solve the Maxwell equations for electromagnetic (EM) waves propagating in a heterogeneous medium. By using a pseudo-vector di…
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…
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…
The Effect of Small-Scale Forcing on Large-Scale Structures in Two-Dimensional Flows
Alexei Chekhlov, Steven A. Orszag, Semion Sukoriansky +2
The effect of small scale forcing on large scale structures in -plane two-dimensional (2D) turbulence is studied using long-term direct numerical simulations (DNS). We find that…
Large eddy simulation of two-dimensional isotropic turbulence
Semion Sukoriansky, Alexei Chekhlov, Boris Galperin +1
Large eddy simulation (LES) of forced, homogeneous, isotropic, two-dimensional (2D) turbulence in the energy transfer subrange is the subject of this paper. A difficulty specific t…