Waves on the surface of a fluid, or on the interface between different fluids are ubiquitous phenomena with wide importance in technology, science and the environment. Over the past fifty years the advent of numerical computations have meant that fundamental questions about waves have proven to be fertile ground for numerical approaches, and additionally rigorous theory, numerical and asymptotic methods have intersected to furnish a vibrant interdisciplinary ground for fundamental research. Over the last fifteen years, the advent of faster computers and new mathematical, numerical and algorithmic methods have enabled numerical computations to address questions of mathematical and physical importance in novel directions, namely three-dimensional flows and/or more complex (e.g. time-periodic or singular) structures. This workshop brought together mathematicians and other scientists working on numerical, asymptotic and rigorous aspects on a variety of free surface flows. This event honoured the 70th birthday of Prof. Jean-Marc Vanden-Broeck, who has been active on these topics over more than forty years. The focus was on four topics: surface and internal waves in potential flows; surface and internal waves in vortical flows; viscous free surface and interfacial flows; other free boundary flows: jets, drops and bubbles.
