TUFLOW 1D Channels and Hydraulic Structures: Difference between revisions
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==Calculating a 1d_bc
As of the 2023-03-AD release, it is possible for TUFLOW to automatically create a Head-Discharge curve for 1d_bc HQ boundaries. For more information see Section 3.5 of the <u>[https://docs.tuflow.com/classic-hpc/release/2023-03-AE/OneDSolv-1.html#Auto1DHQ-2 2023-03 Release Notes]</u>.
There is no automatic way of creating a Head-Discharge curve for 1d_bc HQ boundaries. However, the condition to be satisfied for a normal depth is the Manning’s equation. So the HQ depth should be set up with elevation and the discharge calculated from Manning’s equation (including Area and Hydraulic Radius for each elevation point) and can be calculated manually in a few steps:<br>▼
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<li>Use the Elevation (Head) vs Discharge pairs to populate the HQ table.
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==Why is the maximum 1D water level higher than 2D water level?==
TUFLOW calculates storage at 1D nodes (including manholes) and calculates flux at pipe mid-sections. The storages at the manholes are saved in the format of ‘elevation vs nodal area’ tables, which you can check from the .eof file:<br>
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