This is the second volume in a collection which demonstrates the importance of mathematical, computational and experimental techniques to the advancement of research in nonlinear instability, chaotic motions and turbulent flow systems.

Containing original research, research-expository and survey articles, it provides a digest of current developments, together with open questions and unsolved problems which are likely to determine fruitful directions for future advanced study and research. All the chapters are invited and come from fluid dynamicists and applied mathematicians who have made important contributions to this area.

Both thermal and shear flow systems are covered, while applications reviewed include aerodynamics and materials processing, geophysics, oceanography, atmospheric science and astrophysics.