Emilie Nielsen: /* Method */

2026-06-23T22:52:24Z

Method

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Emilie Nielsen: /* Method */

2026-06-23T22:51:57Z

Method

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Anne.Kolega: Created page with "= Introduction = QGIS is used to view the head loss across the 2D bridge with the TUFLOW Viewer V2. For viewing of the 2D map results, see Module 1.

= Method = Plot head loss across the 2D bridge:

Open the Map Outputs and Plot Output results, either: Within the QGIS Browser Panel drag the following layers into the QGIS workspace, or :: '''Module_04\TUFLOW\results\M04_5m_001.xmdf''' > loads..."

2026-06-23T03:00:42Z

Created page with "= Introduction = QGIS is used to view the head loss across the 2D bridge with the TUFLOW Viewer V2. For viewing of the 2D map results, see Module 1. = Method = Plot head loss across the 2D bridge: <ol> <li>Open the Map Outputs and Plot Output results, either: *Within the QGIS Browser Panel drag the following layers into the QGIS workspace, or ::* '''Module_04\TUFLOW\results\M04_5m_001.xmdf''' > loads..."

New page

= Introduction =
QGIS is used to view the head loss across the 2D bridge with the TUFLOW Viewer V2. For viewing of the 2D map results, see [[Tutorial_M01_Results_QGIS_TUFLOW_Viewer_V2 | Module 1]]. 
 

= Method =
Plot head loss across the 2D bridge: 
<ol>
<li>Open the Map Outputs and Plot Output results, either:
*Within the QGIS Browser Panel drag the following layers into the QGIS workspace, or
::* '''Module_04\TUFLOW\results\M04_5m_001.xmdf''' > loads the map output mesh results
::* '''Module_04\TUFLOW\results\plot\M04_5m_001.tpc''' > loads the time series output results
* In File Explorer, navigate to the files above and drag and drop them into the QGIS workspace.
<li>Select the '''M04_5m_001''' file in the Layers panel and click on the 'TUFLOW Viewer Plot Window' [[File:results_2.png | 15px]] icon. The plot widget will open. 
<li>Open the Section Plot [[File:results_lp_v2.png | 15px]] tab, select the Data Type 'water level' and use the 'Draw' [[File:TUFLOW Viewer 2 Draw icon_2.png | 20px]] tool to see head loss across the 2d_lfcsh: 
 
{{Video|name=08_Animation_M04_Results_V2_c.mp4|width=1264}} 

Review structure group outputs:
<ol>
<li>Select the '''M04_5m_001_Plot_L''' file in the Layers panel and click on the 'TUFLOW Viewer Plot Window' [[File:results_2.png | 15px]] icon. The plot widget will open. 
To plot the structure flow and the upstream and downstream water levels, use the 'Time Series' tab and select the Data Types 'Structure Flow', 'u-s Structure Water Level' and 'd-s Structure Water Level'. Use the 'Selection' [[File:TUFLOW Viewer 2 Selection icon_2.png | 30px]] tool, to select the 2d_po line, which will display the data.
 
'''Note: '''Right click on the graph to select 'Show current time'. To display a graph on a secondary axis, select a specific graph and click on 'Move to secondary axis'. 
Use the QGIS 'Temporal Controller' to go through the timesteps. The 'Temporal Controller' has multiple functionalities. Click on the 'play' button to start the animation and automatically step though the time steps. Or select the 'Go to next frame' button to click through. Or use the mouse to go through or select certain time steps. The time step interval can be changed using the 'Step' window.
{{Video|name=09_Animation_M04_Results_Bridge_V2_b.mp4|width=1264}} 
 
<li>Navigate to '''Module_04\TUFLOW\results\plot\csv''' and open '''M04_5m_001_SHmx.csv'''. It contains a summary of each structure when the upstream water level reaches its maximum. The output columns include:
:*Flow, area and average velocity for below and above deck.
:*Total flow, area and average velocity for the whole structure.
:*Upstream and downstream water levels and the head drop across the structure (i.e. upstream minus downstream water level).
:*The time this data was recorded (i.e. the time the upstream water level peaked). 
The structure group output associates the 2d_po points and line with the same Label 'Bridge': 
 
[[File:M04_Results_03b.png]]
 

</ol>

= Conclusion =
:*The plot cross-section tool was used to view the head loss across the layered flow constriction.
:*A plot was made showing structure flow and the upstream and downstream water levels at layered flow constriction.
:*The _SHmx csv file was inspected showing a summary of the structure when the upstream water level reached its maximum.
:*For further functionality, see [https://docs.tuflow.com/qgis-tuflow-plugin/latest/tuflow-viewer TUFLOW Viewer documentation].

 
{{Tips Navigation
|uplink=[[Tutorial_M04#Results| Back to Module 4 Main Page]]
}}

Tutorial M04 Results QGIS TUFLOW Viewer V2 - Revision history

Emilie Nielsen: /* Method */

Emilie Nielsen: /* Method */