Coupled Networks, Patterns and Complexity - Abstract

Barkley, Dwight

Simplifying the complexity of pipe flow

More than 125 years ago Osborne Reynolds launched the quantitative study of turbulent transition as he sought to understand the conditions under which fluid flowing through a pipe would be laminar or turbulent. For years this transition has been the subject of study, controversy, and uncertainty. I will recall some history with a view to explaining why this problem is both fascinating and difficult. I will then focus on recent theory that explains the transition to turbulence in the language of excitable and bistable media.