Search
Related topics are listed below.
Schematic View
User’s Manual » Features » Schematic and Map View » Schematic View
Schematic View is a model focused on the logic relationship of hydraulic objects, not their physical locations or appearance. It will demonstrate in a straightforward way about how those objects are connected with each other. Because of this unique characteristic, it…
Schematic and Map View
User’s Manual » Features » Schematic and Map View
Turn on/off Schematic VIew: The Schematic View in VO-SWMM project can be turned on/off in the Options of Home. Please follow the descriptions of Home for more details. To see the effect of Schematic View on/off selection, create a new or open a saved project, and the…
VO-SWMM Support
User’s Manual » VO-SWMM Support
VO-SWMM has a comprehensive Help System and supporting documentation that will assist both beginners and advanced users. The primary goal in designing this Help System was to empower users with the tools and information so that almost every question can be answered in…
Installing VO-SWMM
User’s Manual » Installing VO-SWMM
Follow the requirements and steps to install VO on your computer. Hardware and Software Requirements Licensing System Installing VO Running VO Uninstalling VO
C. Installing VO-SWMM
User’s Manual » Installing VO-SWMM » C. Installing VO-SWMM
Before installing VO, make sure that you have closed all other programs and that any virus protection software is disabled. A connection to the cloud server is required for the cloud license system to work. These 2 TCP ports MUST be open for outgoing connections on…
D. Running VO-SWMM
User’s Manual » Installing VO-SWMM » D. Running VO-SWMM
To start VO-SWMM, simply double-click on the VO desktop icon or find the VO item from your Start menu. Once VO-SWMM starts, you will first see the splash screen as below Then, you will see the main window. You may see the main window as below, which is used for…
E. Uninstall VO-SWMM
User’s Manual » Installing VO-SWMM » E. Uninstall VO-SWMM
You may be required to uninstall VO-SWMM in the future. The following procedure should be followed to uninstall VO-SWMM from your system: Launch Control Panel and double-click Add/Remove Programs. Scroll down the list until you find VO. Select item and click OK…
6.5 Updating Hydrologic Object Location in Schematic View
VO-SWMM » 6 Working with the Map » 6.5 Updating Hydrologic Object Location in Schematic View
The location of hydrologic objects in schematic view can be determined based on their geospatial location on map. As a result, the hydrologic objects will be in a similar location in schematic view, making the comparison easier. To update the location, choose the…
5.8 Printing Model Schematic
VO-SWMM » 5 Working with Canvas » 5.8 Printing Model Schematic
The model schematic (including the background and labels) can be copied to clipboard or printed directly. This is useful for project report. To copy the schematic to clipboard, click the Copy to Clipboard button in File menu. Then it can be pasted to a third-party…
Step 4: Undeveloped Site – Add Objects to Schematic View
Tutorials » Post-Development Runoff » Step 4: Undeveloped Site – Add Objects to Schematic View
According to the site’s contour map, its topography is fairly homogenous and no well-defined channels exist within the basin which means that mainly overland flow takes place. There are no roads or other local impervious areas and the type of soil is similar…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 6. Runoff Treatment » System Representation in SWMM: A Comprehensive Overview
Water Quality Treatment in LIDs In line with Example 4, we treat the filter strip and infiltration trench LIDs as subcatchments to account for their combined impact on storm runoff, including pollutant reduction. While there aren’t well-established models for…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 1. Post-Development Runoff » System Representation in SWMM: A Comprehensive Overview
SWMM is a distributed model designed to intricately analyze runoff generation within diverse landscapes. This involves subdividing study areas into irregular subcatchments to effectively account for spatial variations in topography, drainage patterns, land cover, and…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 2. Surface Drainage Hydraulics » System Representation in SWMM: A Comprehensive Overview
SWMM functions by representing a conveyance network through a series of interconnected nodes and links. These links control the flow rate between nodes and can include conduits like open channels, pipes, or other elements such as orifices, weirs, and pumps. Nodes…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 3. Detention Pond Design » System Representation in SWMM: A Comprehensive Overview
Designing SWMM detention ponds involves key elements: storage units, orifices, and weirs. These components are detailed below: 1. Storage Units: Storage units in SWMM are nodes, distinct from Example 2’s junction nodes. They utilize a Storage Curve to describe…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 4. Low Impact Development » System Representation in SWMM: A Comprehensive Overview
Filter Strips Filter strips are grassy areas where runoff flows in a thin sheet. They’re not great at reducing peak flows but work well at removing solid pollutants during small storms (< 1 year). They’re most effective on gentle slopes (less than 5%) and…
System Representation in SWMM: A Comprehensive Overview
Practical Example of VOSWMM for Students » 5. Runoff Water Quality » System Representation in SWMM: A Comprehensive Overview
VOSWMM uses different tools and methods to model urban runoff water quality. Calibration data is essential for realistic results. Here’s a brief overview of how VOSWMM handles water quality. Pollutants Pollutants, which are user-defined contaminants, accumulate…
Map View
User’s Manual » Features » Schematic and Map View » Map View
Map View has two sections 1. Treeview of Layers and are arranged into Group 2. Content Viewer where user interacts with map Layer Context Menu Context menus are available for each layer in Table of Content. These menus are described in the table below. The…
7.4 Main View
VO-SWMM » 7 Working with Resource Library » 7.4 Main View
The items in Resource Library is displayed and edited in the Main View. The Main View changes depending on the type of the item. The view for IDF group, Chicago design storm, MASS design storm, and temperature data is given below.
6.1 Map View Layout
VO-SWMM » 6 Working with the Map » 6.1 Map View Layout
There are three components in the map view: Table of Content – A tree view of all GIS layers. It controls the appearance of the layers. Map – The main working space to display and edit hydrologic objects. The features can be created, edited and…
Step 23: View Simulation Results
Tutorials » Dual-Drainage Model » Step 23: View Simulation Results
Select one object on the map. Navigate to the Simulation tab. Click the Plot Results button. Select Run in the drop-down lists of the Plot Results window and check on/off for the variables to be plotted. The Graph and the Statistics will be displayed accordingly. Click…
Step 15: View Elevation Profile
Tutorials » Quick Start Tutorial » Step 15: View Elevation Profile
Select Junction NHYD 6 and 9 on the canvas. Then, click the Elevation Profile button in the Simulation tab. The Elevation Profile will show in a new tab. if Lock Selection box is unchecked, the profile plotting will be updated with the selection on the map. If…
View Your Layer in Google Earth
Tutorials » GIS Tools » Generating Subcatchments in Urban Areas with VOSWMM GIS Tools » View Your Layer in Google Earth
To view your layer in Google Earth using VOSWMM, please follow these steps: 1. Make sure you have Google Earth installed on your system. If you haven’t installed it yet, you can do so by visiting the Google Earth website and downloading the appropriate version…
Step 13: View Simulation Summary Results
Tutorials » Quick Start Tutorial » Step 13: View Simulation Summary Results
The Hydraulic Result Tables list the summary results of all the objects. Click the Hydraulic Result Tables tab and then click Conduit (3) tab. In the drop-down list of Run in the Hydraulic Result Tables to choose the simulation run. *The number (3) in the Conduit (3)…
Step 14: View Simulation Detail Results
Tutorials » Quick Start Tutorial » Step 14: View Simulation Detail Results
Select objects on the map canvas, for example, the Conduit NHYD 8 and 12. Make sure you choose the simulation run in the drop-down list in the Output section under the Simulation tab. Then, click Plot Results under the Simulation tab. *If no object is selected, the…
Step 12: View and Adjust Layer Properties on the Map
Tutorials » Dual-Drainage Model » Step 12: View and Adjust Layer Properties on the Map
Turn on the direction for flow path and other lines Navigate to the “flowpath” layer in the layer table of the map. Right-click the layer to open the context menu. Select Layer Properties. Check on the box Show Flow Direction. Click Apply. Then, click…
Import and Export VOSWMM Models
User’s Manual » Features » Tool Bar » File Menu » Import and Export VOSWMM Models
INP files can be Imported into VO-SWMM and can also be Exported. Import INP Format Select File from main menu window -> Import -> Import SWMM Input File: File path of INP file to be imported into VO-SWMM Generate Layout for Schematic: Checking this will generate…
Properties Tab
User’s Manual » Features » Object Parameters and Results » Properties Tab
Properties window shows all properties of selected hydrologic object(s) or current scenario. To use Properties window: Select single hydrologic object in Map View or Schematic View to view and edit all properties of the object Select multiple hydrologic objects in…
Editing a Group of Objects
User’s Manual » Features » Object Parameters and Results » Properties Tab » Editing a Group of Objects
There are several ways to select multiple objects: Select on Schematic/Map View Select on Parameter Tables Select on Result Summary Tables The common fields of those selected objects will be listed in Properties tab. On the top of Properties tab shows the number…
Result Summary Tables
User’s Manual » Features » Result Summary Tables
Result Summary Tables window provides a spreadsheet environment for showing/editing SWMM simulation result. By default, it’s located at the bottom of the main interface. It can be toggled on/off via Tool Bar > Home > Windows. Result Summary Tables will be reset…
Step 3: Undeveloped Site – Add Background Image
Tutorials » Post-Development Runoff » Step 3: Undeveloped Site – Add Background Image
To help facilitate the placement of drainage-system objects, SWMM can utilize an image as a backdrop behind a project’s study area map. This image is typically a site map of some kind with known dimensions. Any bitmap image file (BMP extension), JPEG image file (JPG…
Tool Box
User’s Manual » Features » Tool Box
By default, all available hydrologic objects are list in Tool Box on the left of VO-SWMM main interface. Adding objects on to Schematic View To add one hydrologic object on canvas in Schematic View, drag and drop it on canvas. Then it can be moved to any location. …
Import OTTHYMO to VOSWMM
User’s Manual » Features » Tool Bar » File Menu » Import OTTHYMO to VOSWMM
Users can import a VO-OTTHYMO project into VOSWMM. If the OTTHYMO model is created on Schematic View, before importing to VOSWMM, please make sure the Schematic View is turned on for VOSWMM project in the Home ribbon Options, so the importing can add models to the…
Error List
User’s Manual » Features » Error List
The Error List window shows the errors and warnings in the model. By default, it’s located at the bottom of the main interface. Certain rules apply to an VO-SWMM model. If these rules are not met, a warning or an error will show in the Error List window. The…
Step 1: Undeveloped Site – Model Setup
Post-Development Runoff (backup) » Step 1: Undeveloped Site – Model Setup
The SWMM model for the undeveloped site is depicted below. It consists of a single Subcatchment S1 whose runoff drains to Outfall node O2. Note that the undeveloped site contour map has been used as a backdrop image. The scenario name is undeveloped. Utilizing a…
Home
User’s Manual » Features » Tool Bar » Home
The Home tab includes the basic functions to create new project, open existing projects, set default project options, and perform basic editing and searching to the project. Home Tab Icon Command Description Icon Command Description…
7.2.2 Watersheds Studies
Reference Guide » 7 Design Storms for Stormwater Management Studies » 7.2 Methodology for Comparing Design Storms and a Historical Storm Series » 7.2.2 Watersheds Studies
Three different types of watersheds were examined in this study; a rural watershed, an urban watershed and a mixed land use watershed. Two rural watersheds in southern Ontario were tested, one was large and had an area of 6540 ha. the other was small having an area of…
Step 9: Developed Site – Model Setup
Tutorials » Post-Development Runoff » Step 9: Developed Site – Model Setup
Post-development condition usually means an increase of imperviousness and decrease of overland flow path. Those changes could increase the total runoff from the catchment and make sharply increased peak flow. Create a New Scenario by Duplicating an Existing…
Simulation
User’s Manual » Features » Tool Bar » Simulation
The Simulation tab includes tools mainly for setting up and running simulations, viewing and analyzing results, and managing database that will be used in the model. Simmulation Tab Icon Command Description Icon Command Description…
SWMM5 Data
User’s Manual » Features » Tool Bar » Simulation » Simulation – Data » SWMM5 Data
In the Data section of the Simulation tab, all data types like transect, curves and climatology etc are defined in the same way as SWMM5. Icon Function Icon Function Transects Curves Climatology …
4.2.3 Opening an Existing Scenario
VO-SWMM » 4 Working Projects and Scenarios » 4.2 Scenarios » 4.2.3 Opening an Existing Scenario
If a scenario is not displayed in Schematic View and/or Map View, double-click it in the Project Manager. A new tab is created with scenario name and the scenario is displayed in the Schematic View and/or Map View.
Tool Bar
User’s Manual » Features » Tool Bar
Following lists are present at the top of the VOSWMM main interface. For a more detailed description of each Toolbar item, please click on each topic to navigate. File Home Simulation GIS Tools Micro-Drainage
Features
User’s Manual » Features
VO-SWMM not only utilizes Microsoft’s latest .Net Framework, 4.0 but also uses WPF (Windows Presentation Foundation) to enhance user experience through the graphical user interface. VH SWMM has new features that improve the efficiency of creating and simulating…
4.3.2 Importing SWMM5
VO-SWMM » 4 Working Projects and Scenarios » 4.3 Importing Scenarios from Model Data Files » 4.3.2 Importing SWMM5
The catchment and channel systems in SWMM can be imported to VO. The subcatchments are converted to either NasHyd or StandHyd based on the imperviousness and the open channel is converted to RouteChannel. It is not recommended to import models with detailed sewer…
6.4.1 Navigating the Map
VO-SWMM » 6 Working with the Map » 6.4 Using the Map » 6.4.1 Navigating the Map
To zoom in and out of the map, wheel the scroll mouse up and down. More navigation tools are available in GIS tab and they are shown below. These tools are described in Table 4-4. The Pan tool is also available from the context menu. Note that in TatukGIS, the Zoom Out…
Step 1: Set up VOSWMM Configuration
Tutorials » Post-Development Runoff » Step 1: Set up VOSWMM Configuration
Because this tutorial is only focused on the stormwater runoff at the catchment outlet, we will build the model on the Schematic view, instead of Map view. Users can use Schematic view if they are interested in the relationship and connection of objects, instead of…
Parameter Tables
User’s Manual » Features » Parameter Tables
Parameter Tables window provides a spreadsheet environment for parameter editing. By default, it’s located at the bottom of the main interface. Table Structure Parameters of each type of hydrologic object is displayed in the same table. These tables are arranged…
9.2.1.1 Viewing Summary Data in Table
VO-SWMM » 9 Working with Output » 9.2 Single-Event Simulation Outputs » 9.2.1 Summary Data » 9.2.1.1 Viewing Summary Data in Table
To view the summary data in a table, use the Hydrograph Result window at the bottom besides the Parameter Tables window. It shows the summary data of all objects in the model. On the top of the window, there are two options to specify the run and switch to show all…
3.14 Properties
VO-SWMM » 3 Conceptual Model » 3.14 Properties
Properties window shows all properties of selected hydrologic object(s) or current scenario. To use Properties window: Select single hydrologic object in Map View or Schematic View to view and edit all properties of the object; Select multiple hydrologic objects in…
File Menu
User’s Manual » Features » Tool Bar » File Menu
Icon Command Description New Project Create a new project Open Project Opens an existing project. VO-SWMM allows to open a VO-SWMM project (.voprj) or a INP file (.inp) Save Project …
Simulation – Run and Options
User’s Manual » Features » Tool Bar » Simulation » Simulation – Run and Options
The tools in the Simulation section in Simulation toolbar are used to perform simulation run, set default parameters and set engine settings. Icon Function Run Default Values Engine Options…
6 Working with the Map
VO-SWMM » 6 Working with the Map
With VO 6.0, we are introducing TatukGIS that will be built into the program. No additional GIS license is required to use Tatuk Map. Users can now choose an ArcGIS or TatukGIS map. Note that an ArcGIS license is required to use the ArcGIS map. Map is another way to…
9.2.5 Traditional Detailed and Summary Output
VO-SWMM » 9 Working with Output » 9.2 Single-Event Simulation Outputs » 9.2.5 Traditional Detailed and Summary Output
When a simulation is run successfully, VO generates traditional Summary Output and Detailed Output and stores them in the project folder. For those new to VO, the Summary Output file is a text-based file that contains the key output data for each object during each…
10.3 Calibration Files
VO-SWMM » 10 Visual OTTHYMO Files » 10.3 Calibration Files
The calibration files are used to import the observed time series data and compare to the simulation outputs. Two file formats are supported: 1) SWMM format and 2) simple CSV format. SWMM Format The SWMM calibration file format is supported. From SWMM user’s…
New Chicago Design Storm
User’s Manual » Features » Tool Bar » Simulation » Simulation – Data » Resource Library » New Design Storm » New Chicago Design Storm
To add a new Chicago design storm, click the Chicago button. A default Chicago design storm will be added and shown in the main view with its Basic Information, parameters of A, B, C, and Time Series table and graph. The parameters of A, B, C can also be copied…
Automate Transect
User’s Manual » Features » Tool Bar » Micro-Drainage Tools » Automate Transect
The Automate Transect feature in VO SWMM is a tool designed to streamline the process of assigning cross-sections to conduits in your stormwater modeling projects. This manual will provide you with a clear understanding of what this feature is and how to use it…
Step 7: Undeveloped Site – Set up Analysis Option and Run Simulation
Tutorials » Post-Development Runoff » Step 7: Undeveloped Site – Set up Analysis Option and Run Simulation
Table 1-3 (SWMM Application Manual, EPA, Sept. 2016) shows the analysis options used to run the model. The Flow Unit was set in Step 2: Create a New VOSWMM Project. The other analysis options in the table above can be set in Run Options and SWMM Options…
4.2 Scenarios
VO-SWMM » 4 Working Projects and Scenarios » 4.2 Scenarios
In VO, a scenario is an independent drainage network. It includes all hydrological objects and the links between them. It can be displayed in Map View and Schematic View. All scenarios are listed in Project Manager.
What’s VO Suite
User’s Manual » What’s VO Suite
VO Suite is one installer and platform that hosts two products: VO-OTTHYMO and VO-SWMM. Users can have access to one or both of them based on their choices of license. This manual will introduce VO-SWMM. For VO-OTTHYMO, please refer to the VO-OTTHYMO Manual and…
2.2 Loss Routine
Reference Guide » 2 Tips for Modeling Ungauged Urban Catchments » 2.2 Loss Routine
In both the United States and Canada, either the Horton’s Method (LOSS = 1) or the CN Method (LOSS = 2) are commonly used for urban catchments. The Proportional Loss Method (LOSS = 3) has been successfully used in France for urban catchments. While the selection of…
9.3.3.1 Hydrograph
VO-SWMM » 9 Working with Output » 9.3 Continuous Simulation Outputs » 9.3.3 Time Series Plot » 9.3.3.1 Hydrograph
Flow data is available from all hydrologic objects. To view the flow data, select the objects in Map View or Schematic View, and then click the Hydrograph button in Simulation tab. The Hydrograph window will appear as below. This window is same as the single-event…
Micro-Drainage Tools
User’s Manual » Features » Tool Bar » Micro-Drainage Tools
Micro Drainage is a modeling methodology for analyzing surface and sewer drainage system performance using the best-available information. Micro Drainage analysis models the precipitation flowing from overland system into the minor system through catch basins acting…
4.2.1 Creating a New Scenario
VO-SWMM » 4 Working Projects and Scenarios » 4.2 Scenarios » 4.2.1 Creating a New Scenario
To create an empty scenario, click the Add button at the top of the Project Manager or select Add menu from the context menu. The Scenario Create window will appear. Enter the name and description and click OK button to create the scenario. The new scenario will be…
3.10 Overview
VO-SWMM » 3 Conceptual Model » 3.10 Overview
The interface has been designed to provide plenty of working space for the schematic and map model while maintaining easy access to the hydrologic objects and their associated parameters. The layout consists of various sections as explained in the text below. Most of…
Step 5: Undeveloped Site – Assign Object Properties
Tutorials » Post-Development Runoff » Step 5: Undeveloped Site – Assign Object Properties
Outfall node properties To view and edit the properties of the Outfall node, click on the Outfall on the Schematic view and then click on the Properties tab which is by default on the right of the VOSWMM main interface. Change the NHYD and the Name as “O2”…
Dual-Drainage Modeling Procedure
User’s Manual » Features » Tool Bar » Micro-Drainage Tools » Dual-Drainage Modeling Procedure
In the stormwater management system, on the one hand, the stormwater collection is often done via catch basin. Catch basins are used to catch overland flow and transport the water to underground sewer system. On the other hand, the overland inflow can also entre…
Problem Statement
Practical Example of VOSWMM for Students » 2. Surface Drainage Hydraulics » Problem Statement
Figures 2-1 and 2-2 display the pre- and post-development SWMM model layouts from Example 1. In Figure 2-1, the pre-development region was depicted by a single subcatchment, sized according to a 500 ft overland flow limit. The post-development scenario (Figure 2-2)…
Summary
Post-Development Runoff (backup) » Summary
This example used SWMM to estimate the runoff response to different rain events for a 29 ac development that will be built in a natural area. Comparisons were made between the runoff peaks and total volume for each event for both pre- and post-developed conditions. The…
9.2.2 Hydrograph Data
VO-SWMM » 9 Working with Output » 9.2 Single-Event Simulation Outputs » 9.2.2 Hydrograph Data
This output feature allows the user to view the actual hydrograph numerical data, in terms of time step and flow. Users can view an individual hydrograph, at a selected location within the model, or multiple hydrographs. Users can also copy the desired values and paste…
User’s Manual
User’s Manual
This manual provides introductions on VO-SWMM and the use of its basic functions and advanced tools.
Manhole Inflow and Infiltration Modeling
User’s Manual » Features » Tool Bar » Micro-Drainage Tools » Dual-Drainage Modeling Procedure » Manhole Inflow and Infiltration Modeling
As described in the Dual-Drainage Modeling Procedure, the inflow and infiltration entering the sewer via manhole can be modelled by outlet links’ rating curves. The first step of manhole inflow and infiltration (I&I) modeling to know which type of manholes are…
D. Radar
VO-SWMM » D. Radar
This unique VO-SWMM feature is an improved way to generate the watershed surface. Ground corrected radar leverages the computational power. Rainfall radar and other distributed rainfall techniques are used for pre- and post-storm event forensic analysis and system…
4.3 Importing Scenarios from Model Data Files
VO-SWMM » 4 Working Projects and Scenarios » 4.3 Importing Scenarios from Model Data Files
A scenario can be created by importing from model data files. This is useful when 1) the model is in another model platform (e.g. SWMM) or in older VO data files and 2) there is need to integrate a scenario to current project.
Welcome
User’s Manual » Welcome
Welcome to VO Storm Water Management Model (VO-SWMM), the hydrologic & hydraulic model simulation software package. It is an effective hydrologic management software that has been developed for various analyses including Watershed Studies, Sub-watershed Studies, Master…
2.2 Project Setup for Single-Event Model
VO-SWMM » 2 Quick Start Tutorial » 2.2 Project Setup for Single-Event Model
To create a single-event OTTHYMO project, select File -> New Project -> New Otthymo Project. To have a reference to place the hydrologic objects, a background picture can be added to the canvas. To add the background, switch to Schematic View and choose…
A. Seminars and Workshops
User’s Manual » VO-SWMM Support » A. Seminars and Workshops
Smart Water City Inc. hosts seminars and workshops that allow users the opportunity to learn the basics of VO-SWMM and use all its features to their full potential. Seminars and workshops are organized by need. You can find more information from our…
Practical Example of VOSWMM for Students
Practical Example of VOSWMM for Students
This tutorial revolves around using EPA SWMM resources to practically implement projects with VOSWMM. We’ll follow step-by-step guides based on the “Storm Water Management Model Applications Manual” by Jorge Gironás, Larry A. Roesner, and Jennifer…
4.2.5 Scenario Settings
VO-SWMM » 4 Working Projects and Scenarios » 4.2 Scenarios » 4.2.5 Scenario Settings
Scenario settings are available in Properties window. To show the scenario properties, open the scenario and deselect all objects. The settings are described in the table below. Setting Description Name The name of the scenario…
Step 17: Export INP File
Tutorials » Quick Start Tutorial » Step 17: Export INP File
Click the File button on the left upper corner. Navigate to the Export and choose Export to SWMM INP File. In the pop-up window, choose the location where to put the INP file.
3. Detention Pond Design
Practical Example of VOSWMM for Students » 3. Detention Pond Design
Example 3 explains the process of creating, designing, and assessing a detention pond using SWMM. The detention pond, designed for water quality capture and peak flow control, employs storage components, orifices, and weirs. It models an urban catchment akin to…
GIS Tools
User’s Manual » Features » Tool Bar » GIS Tools
With VOSWMM, we are introducing TatukGIS that will be built into the program. No additional GIS license is required to use Tatuk Map. Users can now choose an ArcGIS or TatukGIS map from Home Tab Options. Note that an ArcGIS license is required to use the ArcGIS map. …
VOSWMM Main Interface
User’s Manual » Features » VOSWMM Main Interface
After installation, the initial interface is in VO. To switch to VOSWMM, click File drop-down list. In the New Project, select New SWMM Project. The VOSWMM main interface will show.
6.4.2 Selecting Features on Map
VO-SWMM » 6 Working with the Map » 6.4 Using the Map » 6.4.2 Selecting Features on Map
Features can be selected on map. To select features: Click the Select button in GIS tab. Click the feature on the map. The outline of the selected feature will be changed. To add other features to the selection, hold the CTRL key and click on the feature. To…
4. Low Impact Development
Practical Example of VOSWMM for Students » 4. Low Impact Development
This example shows how to model two Low Impact Development (LID), filter strips and infiltration trenches, within SWMM. Unlike the previous Example 3, which focused on large-scale detention ponds, these LIDs work on a smaller scale and rely on infiltration and…
5. Runoff Water Quality
Practical Example of VOSWMM for Students » 5. Runoff Water Quality
This example demonstrates simulating pollutant accumulation and washoff in an urban area, considering different land uses and using Event Mean Concentrations (EMCs) and exponential functions for washoff. Surface runoff quality is crucial yet complex in wet-weather flow…
Transect Feature Tutorial
Tutorials » GIS Tools » Transect Feature Tutorial
In this tutorial, you will learn how to use the Automate Transect feature in VO SWMM to assign cross-sections to conduits using a DEM file and a cross-section layer. Follow these steps to successfully utilize this powerful tool: Prerequisites Before you begin, ensure…
Step 26: Save Project and Export INP File
Tutorials » Dual-Drainage Model » Step 26: Save Project and Export INP File
Click the Save Project button in the Home tab. Click the File button on the left upper corner. Navigate to the Export and choose Export to SWMM INP File. In the pop-up window, choose the location where to put the INP file.
2. Surface Drainage Hydraulics
Practical Example of VOSWMM for Students » 2. Surface Drainage Hydraulics
While Example 1 demonstrated a hydrologic model for urban runoff, it didn’t include hydraulic routing. In Example 2, we’ll use SWMM’s hydraulic features to model a surface drainage system. We’ll add a conveyance network to the post-development…
9.2.1.2 Viewing Summary Data in Label
VO-SWMM » 9 Working with Output » 9.2 Single-Event Simulation Outputs » 9.2.1 Summary Data » 9.2.1.1 Viewing Summary Data in Table » 9.2.1.2 Viewing Summary Data in Label
VO can provide labels for each object on Schematic View, on an individual basis or all command basis. The label content includes the NHYD, name, and hydrograph summary data. To create labels: Select the objects you wish to create a label for. Right-click and select…
1. Post-Development Runoff
Practical Example of VOSWMM for Students » 1. Post-Development Runoff
This particular example has been previously introduced in the post-development runoff section. Here, our focus shifts to exploring additional dimensions of the project, setting the stage for upcoming examples. Begin by importing the INP file named Example1-Pre and…
6.4.5 Linking Hydrologic Objects
VO-SWMM » 6 Working with the Map » 6.4 Using the Map » 6.4.5 Linking Hydrologic Objects
Links between hydrologic objects can also be created in Map View. To create a link: Click the Add Link button in GIS tab or choose the Add -> Link menu from the map context menu. Notice the cursor changes to cross hair shape. Move the cursor to the hydrologic…
Step 11: Process DEM
Tutorials » Dual-Drainage Model » Step 11: Process DEM
The DEM processing will use the tools in the DEM Processing section in the Micro-Drainage tab. There are six tools in the DEM Processing section in Micro-Drainage toolbar. The first one Run DEM is a tool to run all the other five tools in a click. Users can also user…
6.3.3 Support Layers
VO-SWMM » 6 Working with the Map » 6.3 Using Layers » 6.3.3 Support Layers
Support Layers are added to help define rain gauges (Raingauge), display the type of hydrologic objects (Command) and display connections between hydrologic objects (Connector and CatchmentLine). The Raingauge layer displays rain gauge on the map. It is used in DRMT…
9.3.3.2 Plot Results
VO-SWMM » 9 Working with Output » 9.3 Continuous Simulation Outputs » 9.3.3 Time Series Plot » 9.3.3.2 Plot Results
To view other time series data, select the objects in Map View or Schematic View, and then click the Plot Results button in Simulation tab. The Plot Results window will appear. On the left side is the control panel to control the data source and appearance of the…
Step 2: Create a New VOSWMM Project
Tutorials » Quick Start Tutorial » Step 2: Create a New VOSWMM Project
Navigate to Home tab. Select New SWMM Project from the drop-down list of New Project button Turn off BaseMap by unchecking the box in the map layer table. *In this tutorial, we will create a virtual model, so we do not need to show the map. Click the…
Conversion of Modeling Objects
User’s Manual » Features » Tool Bar » File Menu » Import OTTHYMO to VOSWMM » Conversion of Modeling Objects
The modeling objects in OTTHYMO and VO-SWMM projects are different, although they share some similarities. The conversion of all the OTTHYMO objects is described for each of them. *Some assumptions are made to set parameters during the conversion. Users should check…
Step 2: Create a New VOSWMM Project and Change the Scenario Settings
Tutorials » Dual-Drainage Model » Step 2: Create a New VOSWMM Project and Change the Scenario Settings
Navigate to Home tab. Select New SWMM Project from the drop-down list of New Project button Click the Properties tab in Project Manager which by default is on the right side of the VOSWMM main interface. Change the Unit to CMS and the LinkOffset to Elevation. …
E. Capture Curves
VO-SWMM » E. Capture Curves
Emphasis is not only on peak flow reduction but also storm Water Quality Control (WQC). Urban stormwater management practices, therefore, include the designing of retention ponds, infiltration systems, wetlands, etc. Sizing these WQC basins are very important. Contrary…
Query
User’s Manual » Features » Tool Bar » GIS Tools » GIS – Map » Query
Use the Query tool to search desired commands on the Map. Please note that Query is a GIS tool, so it only works for the commands created on the Map, not for Schematic View. In the Query window, set up your query condition: Choose which Layer to search for the…
Step 2: Create a New VOSWMM Project
Tutorials » Post-Development Runoff » Step 2: Create a New VOSWMM Project
Navigate to Home tab. Select New SWMM Project from the drop-down list of New Project button Right-click on the “Scenario1” under Drainage Network Scenarios in the Project Manager tab. In the context menu, choose Rename. The name of…
Model Results
Practical Example of VOSWMM for Students » 2. Surface Drainage Hydraulics » Model Results
Culvert Sizing Before comparing alternative routing methods in SWMM, it’s essential to determine culvert diameters in the conveyance system. This involves finding the smallest size from Table 2-5 for each culvert, ensuring it handles 100-year, 2-hour storm…