Developing Fluidity for high-fidelity coastal modelling

This paper outlines work undertaken to improve the performance of Fluidity for both general computational fluid dynamics and tidal modelling problems. Optimising the general computational structure of Fluidity, along with work to improve the data decomposition and parallel load balance enabled simulations to be run over 3x faster than with the original code, even at scale. This changes the level of detail that fluids problems can be studied with Fluidity, and impacts upon research that examines high Reynolds number, turbulent flows – particularly in areas such as engineering aerodynamics, wind energy, marine energy, and environmental/pollution modelling.