Objective Functions in the Genetic Algorithm of InfoSWMM and InfoSWMM SA
The objective of the optimal calibration problem is to minimize the numerical discrepancy between the observed and predicted values of link flow, link depth, …
Calibration Methodology
The successful application of a sewer collection system model to the planning, design, and management of urban stormwater systems is highly dependent upon how well the model is calibrated and how well the …
In InfoWorks ICM 6.5 and later the SWMM 5 LID Controls were added to the Subcatchment Grid of ICM. Here is a copy of the ICM Help File. The LID Controls …
SWMM5 Network Export from ICM 8.5 Help File
InfoWorks ICM can export networks to SWMM5 data format.
To export to SWMM5 file:
Stormwater and Wastewater Modeling with Visual Hydro/Visual SWMM
Storm Water Management Pond Example with Manhole Flooding, Overland Flow Routing, Pond Evaporation, Pond Losses and Conduit Design.
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Introduction
Visual Hydro/Visual SWMM can comprehensively model storm …
The dialog box for the SCS peak discharge method is shown below.
· Unit System – English or SI unit.
· …
Energy Relation for Closed Conduit Flow
Conservation of energy involves a balance in total energy, expressed as head, between any upstream point of flow and a corresponding downstream point, including head losses caused by friction …
Gutter Flow
Gutters are the sections of roadway that run adjacent to the curb. Their purpose is to collect and convey surface runoff to drainage inlets and in turn to underground storm sewers. The corresponding …
When the flow is Supercritical in an upstream section of a channel and is then forced to become subcritical in a downstream section, a rather abrupt change in depth usually occurs and …
Pump Characteristic Curve
Pump Characteristic Curve
Pump characteristic curves are usually presented graphically describing the relationship between pump head, hp, and the flow rate, Q using either an exponential equation or 3-point quadratic form. …
Inertia of Pumps and Motors
The combined inertia of pumps and motors driving them, including the connecting shafts and couplings, is required for transient analysis associated with the starting and stopping of pumps. The equations …
Time of Concentration
The dialog box for estimating time of concentration using the Kirpich method is shown below.
· Unit System – English or SI unit.
· …
3.4 Gradually Varied Flow
Discussions in the previous sections have focused on uniform flow hydraulics where flow depth y and flow velocity V remain constant along the channel. In this section, we consider gradually varied …
Note for SWMM6 – this may be useful for any discussion of a Slot in SWMM6. A Preissmann Slot is used in InfoWorks ICM, XPSWMM and one of the solutions of SWMM4
Wave Speed
The …
2.3.1 Flow Calculator (Simple in Innovyze H2OCalc)
The Flow Calculator category performs hydraulic calculations for the following elements: Circular Channel, Rectangular Channel, Triangular Channel, Trapezoidal Channel, Irregular Channel, and Pressurized Pipe.
Circular Channel
The circular …
3.11 Weirs in Innovyze H2OCalc
Discharge in channels and small streams can be conveniently measured by using a weir. Weirs can be categorized in to two: sharp crested and broad crested.
Sharp-Crested Weir
A sharp-crested …
3.6 Pump Calculations in Innovyze H2OCalc
A Pump is used to augment head to the system (water distribution systems or waste water collection systems), and helps to lift water from low lying locations to a …
3.14 Water Hammer
Surge analysis is important to estimate the worst-case events in the Water Distribution Systems (WDS). Transient regimes in WDS are inevitable and will normally occur as a result of action at pump …
3.3 Moody Friction Factor Calculator
Darcy-Weisbach friction factor, f, can be evaluated in terms of equivalent sand grain roughness, e, and Reynolds number, Re. Reynolds number is a dimensionless ratio of inertial forces …
3.7 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 …
3.13 Urban Drainage Structures
The methodology presented here for analysis and design of the drainage structures described in this section is based on HEC-22 manual (FHWA, 2001)
Gutter Flow
Gutters are the sections of roadway …
General Culvert Information from Innovyze H2OCalc for All Culvert Programs
A culvert is a pipe that carries water under or through some feature (usually a road or highway) that would otherwise block the flow of …
InfoSWMM and InfoSWMM SA is a physically based, discrete-time simulation model. It employs principles of conservation of mass, energy, and momentum wherever appropriate. This …
How to use Transects in InfoSWMM and InfoSWMM SA
Transects refer to the geometric data that describe how bottom elevation varies with horizontal distance over the cross section of a natural channel or irregular-shaped conduit. …
If you have an InfoSWMM 2D license and you have set up your model with all of the necessary 2D elements and parameters, you …