Taylor Vortices in a Spreadsheet.

Spectral Theory of Taylor Vortices

Uncertainty Propagation Using Taylor Series Expansion and a Spreadsheet

Most analytical models include variables that have randomness or uncertainties associated with them. These models span many scientific and engineering disciplines. Analyzing these models without incorporating the uncertainties may provide misleading results. In this paper, several methods for evaluating uncertainty are summarized. One of these methods is illustrated using the Lotus 1-2-3 spread...

Structural evolution of the Taylor vortices

We classify in this article the structure and its transitions/évolution of the Taylor vortices with perturbations in one of the following catégories: a) the Hamiltonian vector fields, b) the divergencefree vector fields, and c). the solutions of the Navier-Stokes équations on the two-dimensional torus. This is part of a project orient ed toward to developing a geometrie theory of incompressible...

Spirals vortices in Taylor-Couette flow with rotating endwalls.

A Hopf bifurcation with translational invariance has been widely considered as an appropriate model for the appearance of spiral vortices in counter-rotating Taylor-Couette flow. Our experimental work demonstrates that flow conditions close to the axial boundaries are responsible for the type of bifurcation scenario, i.e., either asymmetric pure traveling waves or more complex behavior, such as...

Taylor-like vortices in shear-banding flow of giant micelles.

Using flow visualizations in Couette geometry, we demonstrate the existence of Taylor-like vortices in the shear-banding flow of a giant micelles system. We show that vortices stacked along the vorticity direction develop concomitantly with interfacial undulations. These cellular structures are mainly localized in the induced band and their dynamics is fully correlated with that of the interfac...