TUFLOW CATCH Tutorial M02 TUFLOW FV GIS Inputs QGIS

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Introduction

The ?this wording right? FV mesh and the FV 2d_mat layer are supplied and inspected. The downstream culvert is redefined in TUFLOW FV format, using supplied files. Upstream and downstream boundaries are created to define the TUFLOW FV boundary.

Review Supplied TUFLOW FV Input Files

Navigate to the TUFLOW_CATCH_Module_02\Tutorial_Data folder.

  • Copy Stream_Mesh.2dm into the Modelling\TUFLOWFV\model\geo folder.
  • Copy TC02_culvert_dbase_001.csv into the Modelling\TUFLOWFV\model\csv folder.
  • Copy the following GIS layers into the Modelling\TUFLOWFV\model\gis folder:
  • 2d_ns_TC02_culverts_001_L
  • 2d_ns_TC02_weir_001_L
  • 2d_mat_TC02_FV_001_R

TUFLOW FV Mesh

A TUFLOW CATCH hydrology simulation requires a TUFLOW FV mesh. explain why the mesh is in the waterway

  1. Load the Stream_Mesh.2dm from the Modelling\TUFLOWFV\model\geo folder into QGIS.
  2. In the QGIS Layers panel, right click on Stream_Mesh and select 'Properties...'. Update the symbology to view the mesh rendering:
    • In 'Symbology', in the 'Contours' tab, set the color ramp to 'Blues'.
    • In the 'Rendering' tab, tick on 'Native Mesh Rendering'.
    • Click 'Apply', then 'OK'.
  3. Inspect the mesh. In particular, zoom into the eddies to view the ?triangulation?.


TUFLOW FV Materials

A materials GIS file is used to define the landuse within the TUFLOW FV mesh. The material ID's in this layer are unrelated to those in the TUFLOW HPC materials layers. As such, the same material ID numbers can be used.

  1. Load the 2d_mat_TC02_FV_001.shp from the Modelling\TUFLOWFV\model\gis folder into QGIS.
  2. Click on the 'Apply TUFLOW Styles to Open Layers' symbol from the TUFLOW Plugin toolbar.
  3. Inspect the materials layer.


Downstream Culvert Update

The downstream culvert used in Tutorial 1, is now within the TUFLOW FV mesh. As such, it needs to be redefined in TUFLOW FV format.

  1. Load the 2d_ns_TC02_culverts_001_L.shp and 2d_ns_TC02_weir_001_L.shp from the Modelling\TUFLOWFV\model\gis folder into QGIS.
  2. Click on the 'Apply TUFLOW Styles to Open Layers' symbol from the TUFLOW Plugin toolbar.

Create TUFLOW FV Boundaries


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