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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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The current Lockfill license has expired (since May 15th). Due to complications related to the migration of the Open Source Software website the new license is added in the download section as a standalone file. As soon as the issue is addressed a new folder will be added for download, containing both the installer and the license.

The current Lockfill license has expired (since May 1st). A new version of Lockfill containing a new license file is available from the download page.

We will be organizing the second LOCKFILL course on June 14th (during the Dutch Delft Software Days).  This course introduces the background of LOCKFILL and the graphical user interface by some hands-on practice. More information can be found here .

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.

Several users complained that Lockfill still gave problems regarding write permissions of the Lockfill work directory. The latest bugfix release should attend to this problem. The working directory has been moved to another location, namely %ProgramData%. This should fix the problems many people have been experiencing. Please contact us via the "Get help" page if you still experience...

We will be organizing a LOCKFILL course on October 27th (during the International Delft Software Days).  This course introduces the background of LOCKFILL and the graphical user interface by some hands-on practice.  For more information or registration, visit http://www.dsd-int.nl/training/lockfill-hydraulic-design-schipping-locks/ Hope to see you there!

Several users reported problems with running Lockfill after a succesful installation due to not having write permission in the Lockfill installation directory. This was apparently caused by the absence of the work-directory of Lockfill in the installation folder which Lockfill tried to create during runtime. The work direcory is now created during installation. A new version of the...

From 10 july, LOCKFILL will be freely available; the programs installer and documentation can be downloaded via this website. 

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