TUFLOW 2D Cell Size Selection
This page is currently under construction.
Introduction
Cell size convergence is an important concept in flood modelling.... why?
Rural Catchment Scenario Assessment
Rural Model Description
This test is 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 inflow hydrograph shown below is applied as a boundary condition at the upstream end of the valley.
Rural Assessment Results
| Cell Size | Location 4 Result | Location 5 Result | Mesh Resolution Figure |
| 10m |  |
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| 20m |  |
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| 50m |  |
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| 100m |  |
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| 150m |  |
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| 200m |  |
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| 250m |  |
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