Our research in this area encompasses a diverse range of applications across many length scales, from the control of tiny droplets of ink and the study of microchannel flows to the optimisation of large-scale industrial ovens and air conditioning systems. A defining feature of our approach to fluid mechanics research is the powerful combination of both experimental and modelling techniques to develop a deep understanding of flows and processes. We have excellent experimental and computational facilities to support both. Our research topics are inspired both by industrial or societal drivers and by fundamental fluid mechanics challenges, and we have very good links with industry.<br><br>Flows involving surfaces and interfaces are obviously of great interest to us, and a key area of research is the dynamics of liquid droplets, which arise in many different applications. Examples include inkjet printing, drug manufacture, medicinal sprays, emulsion formation, condensation control, pesticide delivery, fuel/water filtration and separation, and shear-driven droplets (such as one sees on the windscreen of a moving vehicle). Associated with the interaction of droplets with surfaces is the phenomenon of wetting, which is also crucial in many other areas from lab-on-a-chip applications to coating processes to enhanced oil recovery. We have a number of current projects focusing on this fascinating and fertile fundamental topic.