This volume includes a collection of the presented contributions at the 13th Couette-Taylor Workshop, Nonlinear Dynamids in Fluids, held in Barcelona, during July 3 – 5, 2003 hosted by the Department of Applied Physics from the Universitat Politécnica de Catalunya.
Since its first celebration in Leeds (United Kingdom, 1979), the Couette-Taylor Workshop has been gathering scientists from many different areas of physics, applied mathematics and engineering. Initially, this conference was focused on the Taylor-Couette problem, although many other research topics have progressively been included at the meeting during the last two decades. Currently, the Workshop covers not only Taylor-Couette flows, but also other fundamental problems in fluid dynamics such as thermal convection, pattern formation, shear instabilities, etc