1. Create a Boundary Conditions coverage.
|
- Create a new coverage with the SRH-2D "Boundary Conditions" type.
1. Create new coverage from scratch.
|
- Select Map Data in the Project Explorer and use the New Coverage right-click command.
- Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, and naming the coverage.
|
2. Create new coverage from an existing coverage.
|
- Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
- Use the Rename command to give the coverage a new name.
- Change the coverage type.
|
|
2. Create and assign inflow boundary conditions.
|
1. Create an inflow boundary conditions arc.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign inflow boundary conditions.
|
- Right-click on an arc using the Select Feature Arc tool and select the Assign Linear BC... command.
- Specify the boundary condition type in the SRH-2D Linear BC dialog, which will typically be 'Inlet-Q' for inflow boundaries. Specify a constant or a time-varying discharge.
|
|
3. Create and assign outflow boundary conditions.
|
1. Create outflow boundary conditions arcs.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign outflow boundary conditions.
|
- Right-click on an outflow arc using the Select Feature Arc tool and select the Assign Linear BC... command.
- Specify the boundary condition type in the SRH-2D Linear BC dialog, which will typically be 'Exit-H' for outflow boundaries. Specify a constant WSE, a time-varying WSE, or a rating curve.
|
|
4. Create and assign structures (optional).
|
1. Create a culvert structure.
|
1. Create two culvert boundary condition arcs.
|
- Create two feature arcs representing the upstream and downstream locations of the culvert.
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign HY-8 file.
|
- Right-click on the boundary conditions coverage and select the HY-8 Options... command.
- In the HY-8 Options dialog, specify a file with the needed HY-8 crossing definitions.
|
3. Assign culvert boundary conditions.
|
- Using the Select Feature Arc tool, select both culvert arcs.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the culvert boundary conditions specifying the upstream and downstream arcs and launching HY-8.
|
|
2. Create a gate structure.
|
1. Create two gate boundary condition arcs.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign gate boundary conditions.
|
- Using the Select Feature Arc tool, select both gate arcs.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the gate boundary conditions specifying the upstream and downstream arcs and the gate length, gate height, crest elevation, and type.
|
|
3. Create a bridge pressure flow structure.
|
1. Create two bridge pressure flow boundary condition arcs.
|
- Create two feature arcs representing the upstream (beginning) and downstream (ending) locations of the pressure zone.
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign bridge pressure flow boundary conditions.
|
- Using the Select Feature Arc tool, select both bridge pressure flow arcs.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the bridge pressure flow boundary conditions specifying the upstream and downstream arcs and the ceiling elevation and Manning roughness coefficient.
|
|
4. Create a weir structure.
|
1. Create two weir boundary condition arcs.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign weir boundary conditions.
|
- Using the Select Feature Arc tool, select both weir arcs.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the weir boundary conditions specifying the upstream and downstream arcs and the weir length, crest elevation, and type.
|
|
5. Create an internal sink structure.
|
1. Create an internal sink boundary condition arc.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign internal sink boundary conditions.
|
- Using the Select Feature Arc tool, select the internal sink arc.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the internal sink boundary conditions specifying the sink flow type. Enter a negative value to represent a source rather than a sink.
|
|
6. Create a link structure.
|
1. Create two link boundary condition arcs.
|
- Create two feature arcs representing inflow and outflow locations of the link. Often these connect otherwise disconnected portions of a mesh.
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign link boundary conditions.
|
- Using the Select Feature Arc tool, select both link arcs.
- Right-click and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the link boundary conditions specifying the inflow and outflow arcs along with the inflow type and link lag method.
|
|
|
5. Create and assign wall boundary conditions (optional).
|
1. Create a wall boundary conditions arc.
|
1. Create feature arcs, nodes and vertices.
|
- In the Map module, create feature objects in the active coverage.
- Use the Create Feature Arc tool to create arcs in the map coverage.
- Begin creating a new arc by clicking in the Graphics Window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Feature Node tool to create additional nodes alone or to split arcs.
|
2. Modify arcs.
|
- Feature arcs often need to be edited after initial creation.
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node the arc.
|
- Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs.
|
3. Add a new connecting arc.
|
- Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
4. Merge arcs.
|
- Two arcs that share an end node can be merged together.
- Select the shared node using the Select Feature Node tool.
- Right-click on the node and select the Convert to Vertex command to merge the arcs.
- If desired, the Select Feature Vertex tool can be used to select and delete the new vertex.
|
|
|
2. Assign wall boundary conditions.
|
- Right-click on an arc using the Select Feature Arc tool and select the Assign Linear BC... command.
- In the SRH-2D Linear BC dialog, assign the wall parameters with or without extra roughness.
|
|
|