LOCKFILL is a quick tool developed by Deltares, enabling the assessment of a shipping lock’s performance, in terms of levelling times, forces on vessels and flow velocities on the approach harbour bed.
This simulation software product computes the longitudinal forces on the ship which are caused by translatory waves, momentum variation, skin friction, the filling jet and a water density difference, based on a one-dimensional approach. The program allows the calculation of various filling and emptying systems in the heads of the lock, e.g. openings in the lock gates, pipes through the gates fitted with butterfly valves, lifting gates or short culverts in the lock head walls.
The software has a graphical user interface allowing easy input manipulation and showing the computation results in graphs and key indicators. Alternatively, the program can be run in command line.
LOCKFILL is available free of charge. To download the program and for more information, please click here.