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The following nodes are available in MUSIC X.
Broadly, these nodes can be divided into 3 categories; Source Node, Treatment Nodes and Other Nodes.
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The Drainage Link, as its name implies, links flows from one node to the next downstream node. To create ,
To create a a drainage link between two nodes:
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- You will not be able to switch off any of the default flow components from the primary drainage links (e.g., pipe flow, weir flow etc). This ensures that all default flow components are always routed downstream (so water does not disappear!). You will not be able switch on any of the non-default outflow components via the primary drainage links (e.g., infiltration, reuse, ET etc). These non-default flow components can only be added via the secondary drainage links.
- Any of the available flow components can be added and removed via secondary drainage links. MUSIC will ensure that only one flow component is shared between all outflow links for a particular node. So, for example, if you add "Pipe flow" to a secondary link it will be removed from the primary drainage link.To see what outflow components are currently associated with a particular link without opening the link properties dialog, just run the cursor across the link and they will be displayed as a tooltip/hint.
Creating nodes and links
There are a few simple rules which you should be aware of in creating nodes and links within MUSIC:
- There are separate source nodes for urban, agricultural and forested sub-catchments. Each of these three source nodes has its own default discharge pollutant concentrations. Therefore, to represent a sub-catchment made up of differing component land-uses, you must create separate source nodes to represent each of these dominant land-uses.
- Buffer Strips (
) are source control measures. They may only be located directly downstream of a source node, and cannot be located downstream of a treatment node.
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- A source node or treatment node can have only one link downstream of it.
- Source nodes must be between 0.01ha 001ha and 10,000ha (ideally the lower limit of source node area should be 1ha).
- Realistic bounds on size and other design parameters are also specified for treatment nodes.Drainage links can be specified with or without routing (specified using the Edit Properties menu-item in the context-sensitive menu for that node). Additional rules regarding the creation of primary and secondary drainage links can be found here
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