TUFLOW June 2006 Release
This page provides a list of the main features in the June 2006 TUFLOW release now downloadable from TUFLOW Executables, and the manual from TUFLOW Manual.
March 20, 2008
Build 2006-06-CC is the same as 2006-06-CB, but includes the multiple automatic 2D HQ boundary bug fix (see Notes for 2007-07-BF).March 6, 2008
Build 2006-06-CB is the same as 2006-06-CA, but includes the SA RF bug fix (see Notes for 2007-07-BE). It also recognises Dongles up to U0850.November 14, 2007
Build 2006-06-CA is the same as 2006-06-BG, but recognises Dongles U0701 to U0720.June 12, 2007
Build 2006-06-BG is the computationally the same as 2006-06-BF, but corrects a bug that causes TUFLOW to crash if more than one SA RF boundary exists.January 18, 2007
Build 2006-06-BF is computationally the same as 2006-06-BA, BC and BD, but includes a couple of enhancments. For more information click here.September 12, 2006
Build 2006-06-BD is computationally the same as 2006-06-BA and BC, but includes a bug that didn't correctly process "..\.." inside a filepath. There is also a bug fix in ESTRY that caused the 2006-06-BA ESTRY build not to startup. For more information click here.August 8, 2006
Build 2006-06-BC is the same as 2006-06-BA, but has been recompiled to allow for allocation of more than 2Gb RAM for very large models. It also includes a -nwk option to only search for network dongles. For more information click here.August 2, 2006
Build 2006-06-AA has been replaced by 2006-06-BA. Build 2006-06-BA incorporates several minor enhancements and bug fixes (click here for more). Users who have downloaded 2006-06-AA should replace it with 2006-06-BA.Bug Fixes and Enhancements in 2006-06-BA
New Features in June 2006 Release:
Enhancements in 2006-06-BF (back)
1. New error message that detects where no cells were selected by a 2d_bc line object that did not intersect any cell cross-hairs. Previously, the message "ERROR - Minimum ZC elevation plus wet/dry depth of XXXX at/along SX boundary is above 1D node bed of XXXX" would occur, which was somewhat misleading.
2. If a negative rainfall is specified for the Read MI RF command to model evaporation or infiltration, it is now not extracted from dry cells!
Enhancements in 2006-06-BD (back)
1. If "..\.." (which means to go up two levels in the folder path) is included in a filepath, TUFLOW would incorrectly remove the "..\.." from the filepath. This has been corrected in this build. This bug does not exist in builds prior to 2006-06-AA.
2. In ESTRY Build 2006-06-BA, there is a bug that causes ESTRY to not startup. The 2006-06-BD build of ESTRY corrects this (see ESTRY Downloads).
Enhancements in 2006-06-BC (back)
1. Allows for allocation of more than 2Gb of RAM for very large models. Note: It is very likely that you will also need to increase the amount of virtual memory that Windows allocates to non-system-resources (our experience is that this is hardware dependent). The default is 2GB but this can be increased to 3GB using the process outlined in: http://searchwincomputing.techtarget.com/tip
2. To search only for a network dongle (ie. skip searching for a standalone dongle), specify -nwk in the TUFLOW.exe command line. This can be useful if having problems picking up a network dongle attached to the same machine as the TUFLOW simulation.
Bug Fixes and Enhancements in 2006-06-BA (back)
1. Compatibility with SMS TUFLOW Interface release (www.ems-i.com/SMS/SMS_Overview/sms_92beta.html), and XP-SWMM2D release (www.xpsoftware.com.au/products/xp2d.htm).
2. Windows message boxes will now prompt the user during or at the end of the simulation. These can be turned off by specifying -nmb in the command line.
3. Can now connect a 1D H boundary node (ie. a 1D HS or HT) to a 2D HX line to setup linearly varying head boundaries along 2D HX lines. There is no interchange of flow with the 1D node, the 1D H boundary simply sets the water levels along the HX line, and water levels between the 1D nodes are linearly interpolated.
4. Fixed bug that didn't correctly remove "\..\" in pathnames if there is a preceding \\.
5. Fixed bug that did not ignore some .ecf commands that are intended for 1D only models (ie. no 2D). .ecf commands affected are: "Start Time" and "End Time". For example, if a different Start Time to that in the .tcf file was set in the .ecf file, this would incorrectly set the times of boundaries in the 1D domain.
6. Fixed bug that was incorrectly outputting 1D results at nodes for models using the new 2D2D feature (Note: this feature is still under development and testing).
7. Fixed bug that didn't stop TUFLOW after reporting an ERROR that no CS data was found for a channel.
General (back)
There are new default settings to ensure models utilise recent enhancements and features. If upgrading old models to the new release, there are commands available that force TUFLOW to use the old defaults.
New TUFLOW_USER_DEFINED.dll will allow users to customise TUFLOW to suit their specific needs. In this release, it contains the various flood hazard formulations that users can re-code if they wish.
Known bugs as documented on the May 2005 release page have been fixed.
Boundaries/Links (back)
New 2D2D link line to interface two 2D domains.
New 2D QT boundary that automatically distributes flow, and can readily wet and dry (no more need for those single nodes, HX lines and CN lines!).
New 2D HQ boundary based on either a user-specified stage-discharge relationship, or TUFLOW automatically generates a stage-discharge relationship based on a water surface slope.
The oblique boundary method has been improved and offers better stability for water level boundaries (HT, HS, HQ) and HX lines.
Variable Geometry (VG) has been adapted to the ZC, ZU, ZV and ZH higher Zpt resolution, producing improved adjustment of elevations over time.
Finally, HX lines and THICK Z Lines select the same cells!
Enhancements to applying rainfall directly to 2D cells, including the ability to vary rainfall spatially and temporally.
Rainfall can now be used for SA polygons.
XP-SWMM interface file formats (.int and .ext files) are now recognised through the BC Database.
Topography/Materials (back)
New 3D Breaklines (Z Lines) feature produces "smoother" Zpt elevations by using a more advanced method of interpolating onto the 3D breakline.
New commands for interpolating Zpt elevations at the cell mid-sides and corners, for importing data from other 2D models that only have cell-centred elevations such as MIKE 21.
Manning's n values can now vary with depth on a material-by-material basis.
Increased maximum line length to 10,000 characters for 1D cross-section .csv files.
1D Scheme (back)
New options to improve stability in the 1D solution of pipes and culverts.
New feature that connects the end of a 1D channel to the end of another channel.
2D Scheme (back)
The atmospheric pressure differential has been added to the 2D hydrodynamic equations, and wind algorithms enhanced that allow the modelling of cyclones and other intense low-pressure systems.
Map Output (back)
New hazard output option as per the Australian Guidelines for map output.
New UK Hazard formulae and categories (based on DEFRA R&D Outputs: Flood Risks to People Phase Two Draft FD2321/TR1 and TR2) for map output.
Map output has new higher resolution options that use the 2D cell centres, mid-sides and corners, and a more sophisticated approach that includes taking into account weir and supercritical flow effects across cell sides, to produce higher quality map output.
Two .sup files for loading map data into SMS are now created. One for just water level and velocity data and one for all data sets specified.
Reference time information is now included in the SMS .dat files, in accordance with the time referencing features in SMS Version 9.2 or later.
New option that only outputs results for cells with depths above a specified cutoff depth. This feature is useful for direct rainfall modelling where there is a need to differentiate between sheet flow and flooding.
External 1D schemes can now utilise the 1D WLL (Water Level Lines) feature that integrates 1D and 2D results in map based output.
New feature that automatically generates 1D WLLs along culverts for including pipe network results in map based output.
Check Files (back)
New 2d_zln_zpts_check.mif GIS layer that shows which Zpts have been modified by Z Lines, the type of Z Line and the Z Line filename.
New 2d_bcc_check.mif GIS layer that provides trace back information on 2D boundary cells.
New 2d_uvpt_check.mif GIS layer that contains the initial velocities, roughness value, FLC, WrF, FC lid depth and FC BD factor at the U and V points.
The 2D domain name has been added to a number of check GIS layers and messages to more easily identify which domain is being referred to for multiple 2D domain models.