TUFLOW 2D Cell Size Selection: Difference between revisions
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= Test Case 1 - Rural Dam Break =
This test case has been sourced from the <u>[https://www.tuflow.com/Download/Publications/UK%20EA%202D%20Benchmarking%20Results.TUFLOW%20Products%202017-09.pdf UK Environment Agency 2D Hydraulic Model Benchmark Test dataset]</u>. It is referred to as Test 5 in the Environment Agency (EA) dataset. The EA designed to simulate flood wave propagation down a river valley following the failure of a dam. The valley DEM is ~0.8 km by ~17 km and the valley slopes downstream on a slope of ~0.01 in its upper region, easing to ~0.001 at lower elevations. The model uses a single manning's n value of 0.04 across the entire domain.
The model topography
[[File:Mesh_Converge_Model_Description_001.png|500px]]
[[File:Mesh_Converge_Model_Elevation_001.png|500px]]<br>
The model has a single inflow at the top of the catchment. The inflow hydrograph that has been used is shown below. Although the inflow only introduces water into the model for 100 minutes the model has been run for a simulation period of 30 hours. This was a requirement in the original EA model benchmark documentation. <br>
[[File:Mesh Converge Model Inflow 001.png|500px]]<br>
[[File:Mesh Converge SMS 0.5hr.png|500px]]
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