I am having a query on flooded nodes.Suppose flooding occurs in a storm water runoff simulation in one node. Then the water will move overland and find another node (manhole) which is not flooded and consequently will enter that node instead of further moving inland. How can this problem be tackled in SWMM run ? is there any method by which this characteristic can be implemented ?Thanks in advance.
You need to be a member of SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM to add comments!
1. The flooded node just floods and SWMM 5 keeps track of the flooding in the report file and continuity error,
2. You use the surface ponding option and SWMM 5 will store the flooded water in a surface pond which you define for each node,
3. You put in real storage pond with a higher outlet to the downstream node using a depth/area table or function,
4. You put in a street or overland transect to simulate the flooded ground and connect this link or street to another node, the flow then goes out on the street in SWMM 5
5. You use a 2D mesh as we have in InfoSWMM and then the flooded flow goes out of the manhole, node or inlet and flows out on the mesh, the mesh then flows to the downstream manhole and reenters your network.
Here is an example of dual drainage for you
Subject: Dual Drainage in SWMM 5
The purpose of the Dual Drainage tool in InfoSWMM is to create a major or street drainage network on top of an existing pipe or what is called the minor network in dual drainage. The created major network has a node (sometimes called the inlet node) on top of the existing minor network node connected by two OUTLET links. One outlet link takes the flow from the street and passes it to the minor network node, the second outlet link takes the surcharged minor network flow and passes it to the major network or street – the direction of flow is important (Figure 1). The general purpose of the Captured OUTLET is to use a head or depth equation to separate the street incoming flow into captured flow and bypass flow
Figure 1. Dual Drainage in General
Figure 2. How it looks in SWMM 5 with node, outlet and conduit elements.
Replies
You have at lest five options,
1. The flooded node just floods and SWMM 5 keeps track of the flooding in the report file and continuity error,
2. You use the surface ponding option and SWMM 5 will store the flooded water in a surface pond which you define for each node,
3. You put in real storage pond with a higher outlet to the downstream node using a depth/area table or function,
4. You put in a street or overland transect to simulate the flooded ground and connect this link or street to another node, the flow then goes out on the street in SWMM 5
5. You use a 2D mesh as we have in InfoSWMM and then the flooded flow goes out of the manhole, node or inlet and flows out on the mesh, the mesh then flows to the downstream manhole and reenters your network.
Here is an example of dual drainage for you
Subject: Dual Drainage in SWMM 5
The purpose of the Dual Drainage tool in InfoSWMM is to create a major or street drainage network on top of an existing pipe or what is called the minor network in dual drainage. The created major network has a node (sometimes called the inlet node) on top of the existing minor network node connected by two OUTLET links. One outlet link takes the flow from the street and passes it to the minor network node, the second outlet link takes the surcharged minor network flow and passes it to the major network or street – the direction of flow is important (Figure 1). The general purpose of the Captured OUTLET is to use a head or depth equation to separate the street incoming flow into captured flow and bypass flow
Figure 1. Dual Drainage in General
Figure 2. How it looks in SWMM 5 with node, outlet and conduit elements.