Online hydraulic design and calculations

The advance in mobile apps and internet accessibility changed the way we socialize and the way we work: Sharing information, instant communications, cloud computing and online calculations are just few examples of the internet in our daily life. One advantage of mobile apps and online calculations is that they liberate us from the desktop and allows us performing engineering calculations on site, as soon as we need or as soon as we collect new data.

Fig1. Welcome screen OTOSHEE

Some years ago, I created a website for performing some calculation that I used quite often. Over the years I’ve been including new equations, but the interface was not so friendly. I decided to improve the interface and make it friendlier, so that it can be used by others. Try the online hydraulic design website.

Fig 2. Screen OTOSHEE

Available options

The web site http://otoshee.eu.pn/ contains sections for:

• Time of concentration. 4 time of concentration equation are available.
• Rip rap. Rip rap sizing for piers and abutments.
• Weirs & gutters. Discharge estimation for weirs and gutters.
• Pipes. Head losses and minimum pipe diameter estimation.
• Scour. Hydraulic scour estimation for groynes, weirs and pipes.
• IDF precipitation. An online interactive GIS map with IDF equation for different locations.

Fig 3. IDF precipitation screen