Download EPANET for free – water distribution modeling software

To facilitate the simulations for networks of junctions, pipes, pumps, valves, and storage structures, calculating flow or water, pressures, tank elevations and concentrations of chemical species, water age and source tracing, United States Environmental Protection Agency (USEPA) has developed a windows based software called EPA-NET. It was released back in 1993 but the stable version of it was published  by Lewis A. Rossman in the year 2008.

EPA-NET is mostly used to design water distribution system for a community or a town etc. EPA NET was started as a research tool that improves our understanding of the movement and fate of drinking – water constituents within distribution systems.
The following are some of few applications of epanet.
– Flow in pipes
– Pressures at junctions
– Propagation of a contaminant
– Chlorine concentration
– Water age
It can also model various types of vales to check and regulate the flow.
Head-flow Curves of Pumps
Within EPANET, pumps are modeled using a head-flow curve, which defines the link between hydraulic head imparted to the system by the pump and flow conveyed by the pump.
EPANET uses a binary file format, but also includes the capability for importing and exporting data in .dxf metafiles and ASCII file format.
EPANET uses an input file with extension “.inp” various data can be imported in EPANET.

Download EPA-Net