1 Introduction
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4. RMC (Right Mouse Click) on the Bounding Polygons blank to to open a pop-up menu. In the pop-up menu, select Add Files to browse the polygon file. The land-boundary of the lake will be loaded here.
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The polygon file for this model is "Outline.p2d" and can be found in Data/Bathymetry folder of the Demonstration Models provided above. |
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Figure 2-2. Add polygon file
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3 Assigning the Initial Conditions
This section will guide you how to assign the initial conditions such as the bathymetry, water level and bottom roughness.
Figure 3‑1. Assigning initial conditions.
3.1 Assigning the Initial Bathymetry
1. Select the Initial Conditions tab and right mouse click (RMC) on the Bathymetry sub-tab. A new Bathymetry form will appear. In that form, click on Assign to define bathymetric value.
Figure 3‑2. Assigning bathymetry conditions.
2. The area the user wants to assign the bathymetry data to is set by a poly file. In this case, choose All grid cells
3. The data for bathymetry values is assigned by “Bathymetry.dat” file in Bathymetry folder . This bathymetry file is simply an xyz format.
4. Choose Scatter (XYZ) data and then Add file to browse for “Bathymetry.dat” .
Figure 3‑3. Assigning bathymetry.
5. After adding the data file, click to the Apply Defined Conditions button to make your changes take effect before selecting the OK button.
Figure 3‑4. 2DH View of bottom elevation after assigning bathymetry.
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6. Apply same process for assigning the outflow boundary cell. Figure 4‑11 shows the boundary conditions after assigning the inflow and outflow boundaries.
Figure 4‑11. Inflow and Outflow boundaries assigned.
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