This book is the second volume of the two volume proceedings of the International Conference on Computer Modelling of Seas and Coastal Regions and Boundary Elements in Fluid Dynamics, held in Southampton, UK, in April 1992, and contains edited versions of some of the papers presented at the conference. Fluid mechanics is traditionally one of the most challenging areas of engineering, reflected in the papers which were divided into the following sections: turbomachinery; aerodynamics; viscous flow and turbulence models, and special flow situations.