Building Sewer Collection System models using InfoSewer

Building Sewer Collection System models using InfoSewer InfoSewer is developed to take full advantage of the capabilities of GIS and relational database management systems (RDBMS) technology. By embedding GIS mapping functions and utilizing proven and efficient tools for information exchange and graphical data entry, maintenance and display, InfoSewer provides the user with an efficient easy-to-use vehicle for network model construction and management.In InfoSewer , a sanitary and storm sewer collection system model consists of two major components:Network schematic - The network schematic provides a critical role as a model input, providing information on the connectivity, length, and shape of network components and it also plays an important role in the display and analysis of model results, acting as the vehicle for results presentation.Modeling attributes - Information associated with network elements act as the primary input to the hydraulic network simulator. This informa…

Head loss due to Transitions and Fittings (Local loss) for InfoSWMM and SWMM5

Head loss due to Transitions and Fittings (Local loss) Whenever flow velocity changes direction or magnitude in a conduit (e.g., at fittings, bends, and other appurtenances) added turbulence is induced. The energy associated with that turbulence is eventually dissipated into heat that produces a minor head loss, or local (or form) loss. The local (minor) loss associated with a particular fitting can be evaluated by where   V         =          mean velocity in the conduit (m/s, ft/s) K         =          loss coefficient for the particular fitting involved. The table given below provides the loss coefficients (K) for various transitions and fittings. Table 3-3: Typical Minor Loss Coefficients Type of form loss K Expansion Sudden D1 < D2 Gradual D1/D2 = 0.8 0.03 D1/D2 = 0.5 0.08 D1/D2 = 0.2 0.13 Contraction Sudden D1 > D2 Gradual D2/D1

Rules and Ranges the for Hydrology Options in InfoSWMM and InfoSWMM SA

Subcatchment Hydrological (Modeling) - Data TableThis table contains all subwatershed data that is used to estimate the amount of  runoff and pollutant yielding from Subwatersheds. For more information on each of the input (data fields) in this table, Subcatchment editor may be referred.  The following table is in invert colors and shows the whole first row of the DB Table on separate rows in the image.
Field Description Subcatchment ID User determined ID.  It can only be changed with the Change ID command. Raingage ID Specify Raingage ID used to input rainfall data to Subcatchment. Receiving Node ID Node ID for node receiving rainfall hydrograph from Subcatchment. Subcatchment Area Area of Subcatchment Subcatchment Impervious (%) Percentage of the Subcatchment covered by impervious surfaces. Subcatchment Width Characteristic width of the Subcatchment (feet or meters). Subcatchment Slope (%) Slope of the Subcatchment. Subcatchment Curb Length Total length of curbs in the Subcatchment (any length un…