Dr Peter Menzel, from the Sediment Transport Research Group at the University of Rostock, said: “We have provided a model of a 1:1 scale 250 lb World War II bomb and other typical unexploded ordnance at 1:2 scale. The ability of the Fast Flow Facility to replicate the scour, self-burial and mobilisation processes involved with UXO prediction at full-scale gives us great confidence in the results. We are investigating self-burial, so how deeply UXO bury themselves over time, as well as mobilisation current speeds, that is, how current speed affects the movement of UXO, as well as how rates of flow affect scour around UXO.”
Prof. Richard Whitehouse, Chief Technical Director, Sediment Dynamics at HR Wallingford, said: “In these experiments, we are using our expertise in the analysis and modelling of marine scour processes. Our Fast Flow Facility provides a controlled environment in which to evaluate the effects of currents on full-sized UXO, and so provide the University of Rostock with validated data across a range of flow conditions, burial depths and mobilisation speeds.
Dr Anja Drews, TenneT, said: “Being able to know and to quantify the circumstances under which unexploded ordnance move enables us to determine appropriate UXO measures in renewable marine energy projects . By funding this research, we are helping to ensure that knowledge in the industry about UXO movement is as accurate as possible, improving safety by quantifying, and thereby minimising, the risk to people and equipment.”