Water Simulation

Update: following a comment by Joaquim Sousa, one of the developers of WaterNetGen, I have updated the post since it seems I made a mistake and didn’t use the right settings for the SA method – sorry. A few months ago, researchers from Coimbra (Portugal) released the WaterNetGen program. WaterNetGen is a free EPANet extension to automatically [...]

During the 14th Water Distribution Systems Analysis Conference (WDSA 2012), a new Battle of the Water Networks will be held: The Battle of the Water Networks (BWN-II) is the fourth in a series of “Battle Competitions” dating back to the “Battle of the Water Networks” in 1985 and more recently the “Battle of the Water Sensor Networks” [...]

A few months ago, the SWAN forum published a list of stated NRW (Non-Revenue Water) rates in urban networks (pdf file). According to this list there are major cities with non-revenue water rate higher than 30%:  Adana Turkey 69.0% Bacolod Philippines 37.0% Bangalore India 36.0% Bangkok Thailand 34.0% Bogota Colombia 41.0% Bucharest Romania 46.0% Caserta Italy [...]

I get this question from time to time from people who are unable to open the EPANet help file in Windows 7. Actually, the help file may not open also on Windows Vista, Windows Server 2008, or Windows Server 2008 R2. The error message some people see is some variation of the following: The Help for [...]

I have been participating in the EPA’s Event Detection System Challenge (see phase II) held last year with a tool I developed named optiEDS. During the Water Security Congress earlier this month in Nashville, Katie Umberg of the EPA presented the preliminary results of the challenge. Due to some restrictions and issues the five tools which participated [...]

Steffen Macke just blogged that he compiled EPANet for MAC using the Windows installer and Wineskin. I have not seen a MAC version yet so for a lot of folks this should be good news. Grab the file from here.

About a month I asked my readers to identify data-sets of digital and analog inputs of two sensors I connected to an iobridge  IO-204 Monitor and Control Module. I offered a prize of 100$ to the first correct answer. I got a few guess: toilet flushes and chlorine concentration (Jean-Baptiste) room temperature and thermostat or smoke alarm (Luke) [...]

In February 2005 I wrote about the beta version of HYDROFLO. Since then the program has matured into a commercial product. From HYDROFLO web site: HYDROFLO is a software tool that assists piping system designers in the modeling and analysis of single source/single discharge, re-circulating and gravity flow piping systems. These systems are commonly found in industrial process, [...]

THE CONTEST IS OVER – resualts are here Some time ago I reported the water pressure at my house connection. It was around 9 bars! Ever since I was looking for a way to monitor the water pressure and also had my eyes on monitoring flow and some water quality parameters. A few weeks ago [...]

Baoyu Zhuang added a few functions to the EPANet GUI to allow more options while exporting a map to the DXF format. The USEPA version of EPANet allows the user to export a map to DXF using the File->Export->Map form: This export function will save a DXF file containing the nodes and links of the [...]