Rossman
#INFOSWMM, ICM_SWMM, Rossman, SWMM5
SWMM Process Models and Modeling Objects, Units from Hydraulics Reference Manual
EPA SWMM Reference Manual Section 1.3 SWMM’s Process Models and Modeling Objects, Units
… Read the restA blog created from the SWMM5 Reference Manual which makes it searchable. Original on the EPA Web Site https://lnkd.in/eKGHAB7 #watermatters
Huber, Rossman, SWMM5
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Refactoring the SWMM 5 Help File – Study Area Map in SWMM5
Study Area Map in SWMM5
| SWMM's Main Window |
SWMM's main window is pictured below. Click on a labeled element to learn more about it.
| Map Toolbar |
The Map Toolbar contains buttons for viewing the Study Area Map.
| Selects an object on the Map | |
| Selects link or subcatchment vertex points |
Rossman, RTK, SWMM5
Refactoring the SWMM 5 Help File – RDII in SWMM5
RDII in SWMM5
Unit Hydrographs (UHs) estimate rainfall-dependent inflow/infiltration (RDII) into a sewer system. A UH set contains up to three such hydrographs, one for a short-term response, one for an intermediate-term response, and one for a long-term response. A UH group can have up to 12 UH sets, … Read the rest
Rossman, SWMM5
Refactoring the SWMM 5 Help File – SWMM5 Introduction
| Introducing EPA SWMM5 |
The EPA Storm Water Management Model (SWMM) is a dynamic rainfall-runoff simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas. The runoff component of SWMM operates on a collection of subcatchment areas that receive precipitation and generate … Read the rest
Rossman, SWMM5
Refactoring the SWMM 5 Help File – Snowmelt in SWMM5
Snowmelt in SWMM5
| Snowmelt |
Snowmelt parameters are climatic variables that apply across the entire study area when simulating snowfall and snowmelt. They include:
| · | the air temperature at which precipitation falls as snow |
| · | heat exchange properties of the snow surface |
| · | study area elevation, latitude, and longitude correction. |
See … Read the rest
Rossman, SWMM5
Refactoring the SWMM 5 Help File – Tools in SWMM5
Tools in SWMM5
| Using Add-In Tools |
SWMM 5 has the ability to launch external applications from its graphical user interface that can extend its capabilities. This section describes how such tools can be registered and share data with SWMM 5.
| Tools Menu |
The Tools Menu contains commands used to configure … Read the rest
Rossman, SWMM5
Refactoring the SWMM 5 Help File -Editing in SWMM5
Editing in SWMM5
| Working with Objects |
SWMM uses various types of objects to model a drainage area and its conveyance system. This section describes how these objects can be created, selected, edited, deleted, and repositioned.
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hydraulics, Inside SWMM5, Rossman, SWMM5
Refactoring the SWMM 5 Help File – Routing in SWMM5
Refactoring the SWMM 5 Help File - Routing in SWMM5
Flow routing within a conduit link in SWMM is governed by the conservation of mass and momentum equations for gradually varied, unsteady flow (i.e., the Saint Venant flow equations). The SWMM user has a choice on the level of sophistication … Read the rest
Rossman, SWMM5
Refactoring the SWMM 5 Help File – Output in SWMM5
Output in SWMM5
| Viewing Simulation Results |
This section describes the different ways in which the results of a simulation can be viewed. These include a status report, a summary report, various map views, graphs, tables, and a statistical frequency report.
Hydrology, Rainfall, Rossman, SWMM5
Refactoring the SWMM 5 Help File – Climate Data in SWMM5
Climate Data in SWMM5
| Climatology |
The Climatology object in EPA SWMM describes the following climate-related variables used for computing runoff and snowmelt:
| · | Temperature |
| · | Evaporation |
| · | Wind Speed |
| · | Snowmelt |
| · | Areal Depletion |
| · | Climate Adjustments |
| Rain Gages |
Rain Gages supply precipitation data for one or more subcatchment areas … Read the rest
Hydrology, Rossman, SWMM5
Refactoring the SWMM 5 Help File – Groundwater in SWMM5
Groundwater in SWMM5
| Aquifers |
Aquifers are sub-surface groundwater zones used to model the vertical movement of water infiltrating from the subcatchments that lie above them. They also permit the infiltration of groundwater into the drainage system, or exfiltration of surface water from the drainage system, depending on the hydraulic gradient … Read the rest
Rossman, SWMM5
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Refactoring the SWMM 5 Help File – Non Visual Objects in SWMM5
Non-Visual Objects in SWMM5
| Non-visual Objects |
In addition to physical objects that can be displayed visually on a map, SWMM utilizes several classes of non-visual data objects to describe additional characteristics and processes within a study area.
| · | Climatology Data |
| · | Hydrology Data |
| · | Hydraulic Data |
| · | Water Quality Data |
Rossman, SWMM5
Refactoring the SWMM 5 Help File – Links in SWMM5
Links in SWMM5
| Links |
Links are the conveyance components of a drainage system and always lie between a pair of nodes. Types of links include:
| · | Conduits |
| · | Pumps |
| · | Regulators |
| Conduits |
Conduits are pipes or channels that move water from one node to another in the conveyance system. Their … Read the rest
Inside SWMM5, Rossman, SWMM5
Refactoring the SWMM 5 Help File – Nodes in SWMM5
Nodes in SWMM5
| Nodes |
Nodes are points of a conveyance system that connect conveyance links together. There are several different categories of nodes that can be employed:
| · | Junctions |
| · | Outfalls |
| · | Flow Dividers |
| · | Storage Units |
Nodes are also the points where external inflows can enter a drainage system … Read the rest
Rossman, SWMM5, Water Quality
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Refactoring the SWMM 5 Help File – Water Quality in SWMM5
Water Quality in SWMM5
| Water Quality Modeling Features |
In addition to modeling the generation and transport of runoff flows, SWMM can also estimate the production of pollutant loads associated with this runoff. The following processes can be modeled for any number of user-defined water quality constituents:
| · | dry-weather pollutant buildup |
Rossman, SWMM5
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Refactoring the SWMM 5 Help File – Toolbars and Menus in SWMM5
Toolbars and Menus in SWMM5
| Main Menu |
The Main Menu located across the top of the SWMM main window contains a collection of menus used for working with the program. These include:
| · | File Menu |
| · | Edit Menu |
| · | View Menu |
| · | Project Menu |
| · | Report Menu |
| · | Tools Menu |
Hydrology, Rossman, SWMM5
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Refactoring the SWMM 5 Help File – Hydrology in SWMM5
Hydrology in SWMM5
| Hydrologic Modeling Features |
SWMM accounts for various hydrologic processes that produce runoff from urban areas. These include:
| · | time-varying rainfall |
| · | evaporation of standing surface water |
| · | snow accumulation and melting |
| · | rainfall interception from depression storage |
| · | infiltration of rainfall into unsaturated soil layers |
| · | percolation |
Rossman, SWMM5
Refactoring the SWMM 5 Help File – Files in SWMM5
Files in SWMM5
| Files Used by SWMM |
This section describes the various files that SWMM can utilize. They include:
| · | Project File |
| · | Report and Output Files |
| · | Rainfall Files |
| · | Climate File |
| · | Calibration Data Files |
| · | Time Series Files |
| · | Interface Files |
The only file required to run … Read the rest