Theory of Eddy Viscosity Coefficient for Two-Dimensional Inviscid Barotropic Fluid

Inviscid Two-Dimensional Fluid Dynamics Experiments with Magnetized Electron Columns

Inviscid two-dimensional (2D) fluid phenomena like hurricanes, jet streams, Jupiter’s Red Spot, and protoplanetary disks are quite common in Nature. Unfortunately, 2D fluid phenomena are difficult to study in the laboratory because the finite size of laboratory apparati commonly introduces unwanted viscous and friction effects. Magnetized electron columns, however, behave like twodimensional fl...

A dynamic global-coefficient subgrid-scale eddy-viscosity model for large-eddy simulation in complex geometries

Numerical Analysis of Two Ensemble Eddy Viscosity Models of Fluid Motion

This report extends a recent method that calculates an ensemble of solutions of the Navier-Stokes equations efficiently to higher Reynolds number flows. To do so herein we develop and analyze two ensemble eddy viscosity models that do not obviate the good algorithmic properties of the ensemble method. The combined approach of ensemble time stepping and ensemble eddy viscosity modelling has othe...

An eddy viscosity model for two-dimensional breaking waves and its validation with laboratory experiments

An eddy viscosity model for two-dimensional breaking waves and its validation with laboratory experiments Zhigang Tian,1 Marc Perlin,2 and Wooyoung Choi1,3 1Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea 2Department of Naval Architecture and Marine Engineering, University of Michigan, Ann Arbor, Michigan, USA 3Department o...

Viscosity of two-dimensional suspensions.

Over a range of conditions, lipid and surfactant monolayers exhibit coexistence of discrete solid domains in a continuous liquid. The surface shear viscosity, mu(s), of such monolayers collapses onto a single curve: mu(s)/mu(so) = [1-(A/A(c))](-1), in which mu(so) is the viscosity of the liquid phase, A is the area fraction of the solid phase measured by fluorescence microscopy, and A(c) is a c...