TUFLOW August 2008 Release Notes
Brief descriptions of each build for the August 2008 release are provided below. New builds are provided in the event of any bug fixes or minor enhancements, and recognition of new dongles. It is recommended to always use the latest build. Emails of new builds are sent out to all registered members of the TUFLOW Forum who have elected to receive email notifications (to register for the forum click here).
Build 2008-08-AE: December 11, 2008 (Several bug fixes)
Build 2008-08-AD: November 27, 2008 (Mandatory upgrade - minor bug fix and key enhancement)
Build 2008-08-AC: November 21, 2008 (Major and minor bug fixes, along with several enhancements)
Build 2008-08-AB: October 9, 2008 (Minor bug fixes)
Build 2008-08-AA: September 21, 2008 (First release)
Build 2008-08-AE : December 11, 2008 (top)
Build 2008-08-AE includes the following enhancements and bug fixes. To download visit TUFLOW Executables.
1. Bug fix that caused some I Channels (Irregular culverts) to incorrectly calculate the flow.
2. If specifying an .ecf file directly (ie. not using ESTRY Control File Auto), the path to 1D GIS layers was in previous 2008-08 builds incorrectly directed from the .tcf file location instead of the .ecf file location.
3. A new .tcf command "Link 2D2D Approach == Method B" can be used to access a new approach to modelling 2D/2D links that doesn't generate artificial flow. Method A, which is still the default, can generate flow, especially if there is significant changes in elevations along the 2d_bc 2D line. Further enhancements to 2D/2D linking are being investigated.
4. If using "Map Output Format == SMS High Res", the maximum water levels around the edge of the flooded area were set to the Zpt level if the Zpt level was higher than the cell water level - this has been fixed for this build.
5. Bridge coefficients tables output to the .eof file were accidentally removed in the previous build and have been reinstated.
Build 2008-08-AD : November 27, 2008 (top)
Build 2008-08-AD includes the following enhancements and bug fix. This build is a mandatory upgrade to previous 2008-08 builds. To download visit TUFLOW Executables.
1. BW channels now correctly assign the automatic weir channel the correct invert levels (was previously assigning zero invert levels). This bug only occurs in previous 2008-08 builds if "Interpolate Cross-Sections == ON" (which is the default).
2. The application of the "Shallow Depth Stability Factor" command has been enhanced so that it is phased out as depths increase to 0.005m (5mm), and is limited to steep areas of the model. This ensures that direct rainfall models, or any models that apply this command, do not experience temporary choking effects in areas of rapidly varying flow. Note that as of Build 2008-08-AC this feature (by default) only applies to models with direct rainfall. The 0.005m cutoff depth for applying the Shallow Depth Stability feature can be changed using "Shallow Depth Stability Cutoff == <depth_in_m>" in the .tcf file. The default value for non-direct rainfall models is zero (0), which disables the algorithm, and 0.005m for direct rainfall models. If backward compatibility is needed for direct rainfall models run using previous 2008-08 builds, "Shallow Depth Stability Approach == METHOD A" will need to be added to the .tcf file.
Build 2008-08-AC : November 21, 2008 (top)
Build 2008-08-AC has a number of major to minor bug fixes and additional enhancments. The TUFLOW manual has also been updated for this build. For a list of bug fixes and changes click here, or read through the beginning of Table 10.1 in the updated TUFLOW manual. To download Build 2008-08-AC visit TUFLOW Executables and for the updated manual visit TUFLOW Manuals.
Note that Build 2008-08-AC is NOT computationally identical to Builds 2008-08-AA and AB due to a change in the default settings of the Shallow Depth Stability Factor command. If backward compatibility with Build 2008-08-AA or AB is needed, see the description of this command in the TUFLOW manual.
Build 2008-08-AB : October 9, 2008 (top)
Build 2008-08-AB is computationally the same as 2008-08-AA, but includes the following bug fixes. To download visit TUFLOW Executables.
1. Bug fix that caused TUFLOW to hang if there was a blank line in the Pit Inlet Database .csv file
2. Bug fix that applied positive flow for surcharging of pit channels (rather than a negative flow!).
3. Fixed bug that occassionally caused a crash if using the FC Shape feature.
4. Bug fix that in rare situations caused a stack overflow and crash when checking 2D input.
5. Fixed bug that inadvertently caused the error message “ERROR - Number of culvert channels and CV details not the same.” when an irregular culvert was specified.
Build 2008-08-AA: September 21, 2008 (top)
The July 2008 TUFLOW release is now available and downloadable from TUFLOW Executables, and the manual from TUFLOW Manual. New features and changes are summarised in Chapter 10 of the manual and are highlighted in a green shade throughout the text.
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