Fluid flows and structures interact in different sectors, from the energy sector and machine construction, over civil constructions to the biomedical sector. Some examples are the deformation of wind turbine blades and airplane wings by the air flow, transport of crops and fibers by air flow, pressure build-up in bearings, movement of wave energy converters and floating constructions on waves, vibration of tubes in steam generators, motion of bridges and buildings by the wind, and opening and closing of heart valves.

Simulations are used to study these complex interactions. In this research, simulation techniques are developed for these coupled problems and also advanced applications are investigated, with exchange between the algorithmic developments and their applications. The emphasis is on partitioned techniques, which couple solvers for the subproblems, among others using quasi-Newton algorithms.