If the ponded area of the node is zero then any excess flow is lost as overflow and the depth only stays at the rim elevation. Adds a subcatchment to the map O Adds a junction node to the map V Adds an outfall node to the map O Adds a flow divider node to the map bid Adds a storage unit node to the map - Adds a conduit link to the map (71 Adds a pump link to the map H Adds an orifice link to the map Q Adds a weir link to the map 3 Adds an outlet link to the map T. If ( Node.overflow < FUDGE ) Node.overflow = 0.0 Īs an example, if the node floods then the depth will go above the manhole rim elevation as the following image shows. If the node cannot pond (canPond is False) then the amount of overflow is the excess flow in the node and the new depth yNew is set to yMax. If the new depth yNew is greater then yMax then the program will calculate either the amount of flooding from the node or the ponded depth and volume. If ( canPond = FALSE ) yMax += Node.surDepth The surcharge depth from the node attribute table is added to the maximum full depth in the routine dynwave.c as an upper bound check for the new iteration depth of yNew. How does the surcharge depth work in SWMM 5?
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