wash & fold study group

Sept 9, 2013, Monday 1pm
Howey W508 conference room
Jeff Tithof
Abstract: In this talk, the experimental realization of Kolmogorov flow is discussed, in the context of trying to achieve quantitative agreement with the doubly-periodic simulation, presented in our last meeting. The sequence of bifurcations in the "original" geometry are briefly presented. The effects of changing the boundary conditions are shown; we choose a new geometry which improves the agreement with the simulation. Preliminary results of recurrence searches across experimental data and between experiment and numerics are presented.
Slides from the talk can be found here
Here is a video that shows a weak turbulence in the experiment (Re=35).
For an introduction to the 2D Kolmogorov-like flow, read this article.