Version 2.0.x

(August 2010)

Bugfix Release v2.0.1

General:

Bug fixes:

  • implementation of an output time step for controller output
  • correction of 2D bedload_vec output
  • hq-relation boundary condition accepts file as input, slope not mandatory anymore
  • deletion and re-creation of a subblock using the gui doesnt crash the program
  • output of sediment boundaries fixed
  • output of wse and depth on nodes for SMS corrected

Major Release v2.0

General:

New Features:

  • New graphical user interface (GUI). Enables setup of command files, setup and interpolation of BASEchain topography files and running the simulation
  • Visualization (BASEviz) revised and improved to be more interactive
  • Additional Q-t-Table implemented for flow control
  • All sediment transport formulas can now be used for BASEchain and BASEplane.
  • Additional bedload transport formula implemented with Meyer-Peter Müller approach for multi-grain with critical shear stress correction according to Ashida and Michiue.

Subsystem BASEparse:

  • Various changes and standardizatinos of input tags in the command file parser.

Attention:

The changes of the command file's structure are not backwards compatible! Input files for v1.x will not work with v2.0 and vice versa. We recommend all users to update to v2.0.

Guidance on how to convert old command files into the new format:

There are several possibilities to update old command files. The probably easiest way is with the help of the new graphical user interface (GUI). Start the program BASEMENT and open your old command file. The message "parsing failed" will pop up and ask you to open your file in the raw editor to fix it. Confirm with the OK button. In the raw editor, the parse errors will appear in the lower section in red colour. Invalid tags are pointed out and possible tags are proposed. Do the proposed changes and click on the "validate" button to see if your correction was successful. If some proposed tags should be unclear, have a look at the block list reference in the Manual R IV or click the "help" button for a description.
Another possibility is to build up a new command file from scratch with the GUI of BASEMENT. This way you will learn how to use the new GUI and will be provided with all possible input blocks, tags and informations.

Subsystem BASEchain:

New Features:

  • New topography format (.bmg). Please use this file format as the default format for all new projects. The "floris" format will not be maintained in future versions.
  • Python-Script to convert files from the old floris-format to the new .bmg-input format. The script is available in the download section and requires external pagePython to be installed on your machine.
  • Tool in the GUI for cross section interpolation
  • Tool in the GUI to automatically thin out grid points and thus speed up the 1D simulations.
  • Significant speed improvements especially for hydraulic calculations.
  • Coupling via "off-channel" source enabled.

Bug fixes:

  • Bug fix in Roe solver.

Please note: Due to revision works, at the moment only one soil may be specified for a cross section in morphological simulations. Usage of multiple soils will be enabled again in the future.

Subsystem BASEplane

New Features:

  • New framework for data output with additional features and output variables.
  • Geometric approach for gravitational bed load transport (slope failure).
  • some speed improvements for hydraulic calculations.
  • Additional sediment inflow boundary condition which sets inflow to transport capacity.
  • Changes in calculation of sediment bedload fluxes. Upwind factor has more effect now.

Bug fixes:

  • H-Q iterations and default precision in hydrgraph boundary condition fixed.
  • Treatment of fixed bed regions based on material index.
  • Deletion of layers when completely eroded.
  • Sediment restart bug fixed.
  • Error at simultaneous binary tecplot output of hydraulic and sediment data fixed.

System Manuals

  • Revision of hydraulic tutorial for BASEchain
  • New hydraulic and bedload tutorial for BASEplane
  • HTML-documentation files can be automatically generated by starting BASEMENT with command line flag "-doc".
  • additions and corrections
JavaScript has been disabled in your browser