What is LOCKFILL?

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.

LOCKFILL 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. Read more.

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.

On this portal you can find the program, its manual and relevant documentation.

 

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Lockfill 5.2 released with new features

Per request of several users of Lockfill the levelling system of a lift gate with stilling chamber (based on the old configuration of the lock at Eefde, the Netherlands) has been made available to regular users. Because it is specifically made for Eefde the input parameters are not as general as for the other levelling systems and it might be difficult to tailor these to your needs.

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