Fluids and plasmas in a near dissipationless regime commonly exhibit well-defined, coherent structures. We observe these directly in weather patterns, in the zonal jets on Jupiter and the Great Red Spot, in sunspots and magnetic coronal loops, etc. In fact, observations of coherent structures are so widespread that we seldom question why. Such fluids and plasmas are very large order dynamical systems, and therefore appear to have ample freedom to explore near endless states or configurations. Why are so many of these structured - or why do these systems prefer to be in a structured state? In molecular dynamics, by contrast, despite the large numbers of degrees of freedom, structured states are extremely improbable. In this paper, we explore what makes fluids in particular favour structured states.
|Title of host publication
|IUTAM Symposium on Waves in Fluids 2012: Effects of Nonlinearity, Rotation, Stratification and Dissipation
|Subtitle of host publication
|Proceedings of a meeting held 18-22 June 2012, Moscow, Russia.
|Number of pages
|Published - 1 Jan 2013
|IUTAM Symposium on Waves in Fluids: Effects of Nonlinearity, Rotation, Stratification and Dissipation - Moscow, Russian Federation
Duration: 18 Jun 2012 → 22 Jun 2012
|IUTAM Symposium on Waves in Fluids: Effects of Nonlinearity, Rotation, Stratification and Dissipation
|18/06/12 → 22/06/12
- Coherent structures