| Description: EPANET is a Windows 95/98/NT program that performs extended period simulation of hydraulic and water-quality behavior within pressurized pipe networks. A network can consist of pipes, nodes (pipe junctions), pumps, valves and storage tanks or reservoirs. EPANET tracks the flow of water in each pipe, the pressure at each node, the height of water in each tank, and the concentration of a chemical species throughout the network during a simulation period comprised of multiple time steps. In addition to chemical species, water age and source tracing can also be simulated. The Windows version of EPANET provides an integrated environment for editing network input data, running hydraulic and water quality simulations, and viewing the results in a variety of formats. These include color-coded network maps, data tables, time series graphs, and contour plots. EPANET was developed by the Water Supply and Water Resources Division (formerly the Drinking Water Research Division) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory. It is public domain software that may be freely copied and distributed. Download Epanet2 | | 
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| Capabilities: EPANET provides a fully-equipped, extended period hydraulic analysis package which can: handle systems of any size compute friction head loss using the Hazen-Williams, Darcy-Weisbach, or Chezy-Manning formulas include minor head losses for bends, fittings, etc. model constant or variable speed pumps compute pumping energy and cost model various types of valves including shutoff, check, pressure regulating, and flow control valves allow storage tanks to have any shape (i.e., diameter can vary with height) consider multiple demand categories at nodes, each with its own pattern of time variation model pressure-dependent flow issuing from emitters (sprinkler heads) base system operation on simple tank level or timer controls as well as on complex rule-based controls.
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