TUFLOW CATCH Tutorial M03 TUFLOW HPC GIS Inputs QGIS

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Introduction

The updated culvert layers are supplied and inspected.

TUFLOW CATCH Project Re-Configuration

Re-configure the TUFLOW CATCH project to use and save empty files to the correct folders:

1. Go to Processing > Toolbox from the top drop down menu options to open the Processing Toolbox.
2. Go to TUFLOW Catch in the processing tool list and select 'Create TUFLOW Catch Project'. This opens the dialog shown below.
   • Project Name: TC03
   • Project Folder: Click '...', and navigate to the TUFLOW_CATCH_Module_03\Modelling folder.
   • Project CRS: Click the drop down menu and select 'Project CRS: EPSG:32760 - WGS 84 / UTM zone 60S’.
   • TUFLOW HPC Executable: Click '...', and navigate to the exe\TUFLOW\2025.1.0 folder. Select TUFLOW_iSP_w64.exe.
   • TUFLOW FV Executable: Click '...', and navigate to the exe\TUFLOWFV\2025.1.0 folder. Select TUFLOWFV.exe.
   • Default GIS Format: Click the drop down menu and select 'SHP'.
   • Tick on 'Create Empty Files'.
3. Click 'Run' and a console window will open. This creates the empty GIS files.
4. Once the tool has finished, click 'Close'.
   
   
   
   
5. Set the QGIS workspace projection to EPSG:32760, see TUFLOW CATCH Module 01 - Project Initialisation.

Review Supplied TUFLOW Input Files

Navigate to the TUFLOW_CATCH_Module_03\Tutorial_Data folder. Copy the below layers into the Modelling\TUFLOW\model\gis folder:

• 2d_bc_TC03_001_P
• 2d_bc_TC03_001_L
• 1d_nwk_TC03_001_L

For this tutorial, a TUFLOW FV mesh will be included in the channel (outlined in the next section: TUFLOW FV GIS Inputs). Currently, there is a TUFLOW HPC culvert defined in the channel. This culvert needs to be removed from the TUFLOW HPC, and redefined in TUFLOW FV format.

1. Load the supplied files into QGIS and use the 'Apply TUFLOW Styles to Open Layers'.
2. Notice that the downstream culvert has been removed. All other culverts are the same.
   
   
   

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