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Your present position: Home >> Modelling Software >> XPSWMM Back to Previous Page

xpswmm is a comprehensive software package for dynamic modeling of storm water, sanitary and river systems.  It is used by scientists, engineers and managers to develop link-node (1D) and spatially distributed hydraulic models (2D) for analysis and design.

xpswmm simulates natural rainfall-runoff processes and the performance of engineered systems that manage our water resources. It also simulates flow and pollutant transport in engineered and natural systems including ponds, rivers, lakes, floodplains and the interaction with groundwater.

 

WHAT CAN XPSWMM MODEL?

Stormwater Management

  • Stormwater master plans
  • Major/Minor or Dual Drainage Systems
  • Watershed master planning
  • 1D drainage network with 2D overland flow hydraulics
  • Detention pond optimization
  • LID/WSUD and BMP design and analysis
  • Subdivision drainage

Sanitary and Combined Collection Systems

  • Capacity analysis and collection system hydraulics
  • CSO and SSO mitigation studies
  • RDII Infiltration and Inflow studies

River Systems and Floodplain Management

  • 1D and 2D River Hydraulics
  • Identifying flood hazards
  • Culvert and Bridge Analysis
  • Generating flood maps

WHY USE XPSWMM?

Accuracy. Engineers make crucial decisions on behalf of their companies, clients and constituents.  In order to make these decisions, they rely on modeling software to provide results as close to real-life as possible.  The following are features in xpswmm that work together to provide accurate modeling results:

  • Dynamic Analysis. xpswmm solves the full St. Venant Dynamic equations, which provide results far more accurate and closer to real life than a steady state model. Dynamic models allow the effects of storage and backwater in conduits and floodplains and the timing of the hydrographs to yield a true representation of the HGL at any point in space and time.
  • Holistic Modeling Approach. Engineers realize now more than ever that changes in one point of a system affect the entire system. For example, changes in a residential development or urban neighborhood can impact a natural channel upstream and downstream. xpswmm allows you to model an entire system– including natural channels, closed underground systems, ponds, pumps, culverts and more.
  • Xp 2D for modeling Overland Flow. Many products on the market provide the ability to model water quantity through a defined system from a point upstream to a point downstream. xpswmm can combine dynamic 1D analysis with a 2-Dimensional overland flow engine to more accurately model water interaction between surface water and underground systems and natural channels.

  • Variable Elements. Model the reality of your system in xpswmm. Incorporate true terrain to accurately calculate time dependent storage volume. Design for full, partial flow, pressure flow (minimum allowable freeboard), minimum cover, multiple barrels and the ability to select from a list of available pipes sizes and shapes.
  • EPA Tested, FEMA Approved. xpswmm is approved by US Federal Emergency Management Authority (FEMA) under multiple categories and results are now accepted for steady state, unsteady state, hydraulic or hydrological applications, for both 1D and 2D flood modeling. It was also the first and only proprietary stormwater and wastewater management modeling software package to be tested by the EPA’s Environmental Technology Verification (ETV) Program.
  • Subsurface Hydrology - account for perched water tables and limited soil storage using groundwater options. Calculated groundwater flows can be used for base flow generation to rivers and dry weather infiltration to sanitary sewer systems. 

 

Efficiency. Your time is worth money.  xpswmm provides you with tools that help make the best use of your modeling time.

  • GIS Integration. Time spent doing more menial tasks like data entry can eat up your project budget. xpswmm’s GIS data linking abilities will save you significant time building your models. Do you have existing system data in a database? With xpswmm’s easy wizard, you can link your modeling software to almost any GIS system to import data, build your model, and even update your database with missing information or model results. And since xpswmm is an independent, standalone system, you have the versatility to work with data in any ODBC or OLE compliant database.
  • Scenario Manager. Examine “what if” scenarios within a single project without the need of adding redundant data. Compare model results graphically and in tables for various scenarios. A specialized scenario management tool exists also for simulating multiple storms in a single run.

 

  • Digital Terrain Model. Use survey data or import information to create a digital terrain in your xpswmm model. With a mere click and drag of your mouse, you can create cross sections of open channels. Also use your terrain to find node elevations and more easily design your network.

 

 

Versatility of results.  The bottom line for your clients is the design or analysis results that you submit to them.  xpswmm offers unparalleled visual and tabular of model results:

  • Full Results .txt document. View all model data and results in a complete and comprehensive text file.
  • xptables. This user-defined tabular report option is a favorite of XP Software users. It allows the easy manipulation of data (copy and paste from external tables) and multiple display options (change the font, text direction and overall look of the table).
  • Profile / Cross Section views with animation. At any timestep in your model run, you can see a cross section and profile view of your model (in conjunction with the tabular view) along with water levels, maximum HGL and flooding areas. You can also watch an animation of flow as time progresses.

 

  • Plan View with 2D depths and flooding animation. View your entire network, terrain contours, flooding extents and color-coded water depths in one view. Watch color-coded water fill channels, streets and floodplains in real-time animations.
  • xpviewer Encryptor and Free Reader. XP Software created this tool for model reviewing engineers and agencies who wish to view models without making the investment in the software. Users of xpswmm can add the ability to encrypt their models so that their clients can review the models with the free Reader.

Localization.  Does your region require local hydrologic or hydraulic methods be used in collection system models?

  • 15 hydrologic methods.  Choose SWMM Runoff, SCS, Clark, Laurenson, Santa Barbara Urban Hydrograph, Rational Method, Sacramento methods, Los Angeles County Hydrology, Colorado Urban Hydrograph, and others, or import your own hydrograph.
  • EPA SWMM5.  Choose this engine as a solution option.  Import and Export to SWMM5 format
  • Helpful Templates.  Customize the software such as the model’s defaults, parameter precision and create and use templates. Many sample templates are provided that contain common data used for typical modeling applications or typical data for a municipality/regions.
  • Customized Features. XP Software has worked with municipalities to incorporate their tools and methodologies, such as the WSPG addition to xpswmmContact us if we can work for you in this way.

 


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