.sup
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SMS super file containing the various files and other commands that make up the output from a single simulation. Opening this file in SMS opens the .2dm file and the _h, _V, _q and _d .dat files. Other .dat files (whether from are opened in SMS using File, Open.
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n/a
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.2dm
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An SMS two-dimensional mesh file containing the information on elements’ and nodes’ location, shape and the connectivity between elements and nodes. It also contains information on the different materials and cell codes (display the SMS mesh materials). Note that the elevations (bathymetry) in the .2dm file only show the ZH values (ie. top right corner of cell). Other Z points cannot be shown (as yet).
Additional information for each element that is not used by SMS, is used by the utility program sms_to_mif.exe to convert the .2dm file to a GIS layer.
In the TUFLOW .2dm’s present format, nodes only occur at the corners of the cells (elements). The bed elevations at the nodes are set to the ZH values. All hydraulic parameters are interpolated to the nodes (cell corners).
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n/a
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_d.dat
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SMS scalar data file containing water depths at the nodes (cell corners). The depths are calculated as the interpolated water level at the nodes (see _h.dat below) less the ZH value. The interpolated water level may occasionally lie below the ZH value, in which case a negative depth may result which is set to zero by default (see Zero Negative Depths in SMS). Both maximum and minimum output is available.
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d
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_E.dat
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SMS scalar data file containing the energy levels at the element nodes (cell corners). The energy levels are based on the interpolated water levels calculated at the cell centres plus the dynamic head (V2/2g). Due to the interpolation, occasionally an “increase” in energy can occur - an alternative approach to correctly display energy without interpolation is planned for a future release.
Maximum and minimum energy levels were incorporated in Build 2003 03 AE. The maximum and minimum output is for when the maximum and minimum water level occurs.
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E
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_F.dat
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SMS scalar data file containing the Froude Number at the element nodes (cell corners). No maximum and minimum output is available at this stage.
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F
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_h.dat
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SMS scalar data file containing water levels at the nodes (cell corners). The water levels are interpolated from the water levels calculated at the cell centres. Both maximum and minimum output is available.
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h
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_q.dat
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SMS vector data file of unit flow (m2/s, ie. flow per unit width) at the nodes (cell corners). The resulting flow vector is calculated from the surrounding u and v-points and the depth determined in _d.dat above.
Unit flow may also be used as a measure of flood hazard (ie. velocity by depth or VxD).
Note: The maximum and minimum unit flow output (times 99999.0 and 99999.0) is for when the maximum and minimum water level occurs.
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q
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_R.dat
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SMS scalar data file containing a number indicating the flow regime. The value is 0 (zero) for normal (sub-critical flow with momentum); greater than 1 for upstream controlled friction flow (eg. supercritical flow); 1.5 for broad-crested weir flow; and –1 for submerged flow through a flow constriction. No maximum and minimum output is available at this stage.
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R
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_SS.dat
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The net source/sink inflows. Note the flow rate for a cell is shown at the ZH point (top right of the cell).
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SS
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_t.dat
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SMS scalar data file containing the variation in eddy viscosity coefficient. This is useful for checking the Smagorinsky coefficient values. Prior to Build 2002-10-AH was named _e.dat. No maximum and minimum output is available at this stage.
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E
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_V.dat
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SMS vector data file of flow velocities at the nodes (cell corners). The resulting velocity vector is calculated from the surrounding u and v-points.
Note: The maximum and minimum velocities (Times 99999.0 and 99999.0) are when the maximum and minimum water level occurs.
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V
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_Z1.dat
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Flood hazard category based on the Australian NSW Floodplain Management Manual. The output is a number from 1 to 3 as follows and as illustrated in the figure below.
1 Low Hazard
2 Intermediate Hazard (dependent on site conditions)
3 High Hazard
Note: The maximum hazard value (Time 99999.0) is monitored throughout the simulation and is not necessarily when the maximum water level occurs as with some other output.
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Z1
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_Z2.dat
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Flood hazard mapping approach – to be documented.
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Z2
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_Z3.dat
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Flood hazard mapping approach – to be documented.
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Z3
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_ZH.dat
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Elevations at the cell corners (ZH points). This information is already contained in the .2dm file, however, this option is useful if the model’s bathymetry varies over time if using variable geometry (VG) boundaries or for morphological modelling. No maximum and minimum output is available at this stage.
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ZH
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