Sunday, August 4, 2013
The SWMM 5 1D Components in InfoSWMM 2D
Note: The SWMM 5 1D Components in InfoSWMM 2D
InfoSWMM 2D uses standard SWMM 5 components to connect the 1D Nodes to the 2D Mesh. A bottom outlet orifice at the maximum depth of the node drains to a SWMM 5 Outfall at the fixed elevation equal to the Node Rim Elevation. Flow can go into or out of the Outfall from the 1D element from or to the 2D Mesh. InfoSWMM 2D automatically makes the necessary elements if 2D is used and the new elements are listed in the Hydqua.inp file, which is very similar to the Tab Delimited SWMM5 Input file.
The HYDQUA.inp is very similar to the Excel Tab formatted file of SWMM 5 with a few additional sections and added features:
1st Difference: The Flood Node Data Section tell the 2D engine which Node has a 1D-2D connection and which 2D mesh element the 1D Node drains to when it is flooded.
2nd Difference: Outfall Nodes are created for the 2D Mesh Element connected to the 1D Node, the outfalls are Fixed Outfalls and the fixed head is the Node Rim Elevation of the 1D node listed in the Flooded Node Section
10208 89.900000 FREE NO
10208A 89.900000 FIXED 94.400000 YES
10208B 89.900000 FREE NO
10208C 89.900000 FREE NO
10208D 89.900000 FREE NO
10208E 89.900000 FREE NO
10309D_OUTFALL 101.600000 FIXED 111.000000 NO
80408_OUTFALL 120.000000 FIXED 133.400000 NO
3rd Difference: Bottom Outlet Orifices are created to connect the 1D node to the 2D Mesh Element Outfall with the Flood Discharge Coefficient entered by the user and a crest height equal to the maximum depth of the node
OR1@82309B-15009B 82309B 15009B BOTTOM 0.000000 0.850000 NO
OR1@82309D-82308D 82309D 82308D SIDE 0.000000 0.850000 NO
10309D_ORIFICE 10309D 10309D_OUTFALL BOTTOM 9.400000 0.030000 NO
80408_ORIFICE 80408 80408_OUTFALL BOTTOM 13.400000 0.030000 NO
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