Blog

People make mistakes.... The majority of errors in open channel flow measurement result from designers, installers, or operators - not from the equipment itself.  These errors result from a vareity of sources - from a lack to training to inattention to detail - and are…

In talking with customers about weirs, we run into two common misconceptions.  The first misconception is that weirs can read down to zero – that there is no minimum head.  The second is that weirs are more accurate at these flows than flumes. Unfortunately, both…

Portable weir plates are a good way to stretch your research dollars.  Instead of the traditional approach of having a weir plate custom fabricated for each installation, Openchannelflow has simplified the process by developing a standard weir carrier with four…

Stilling wells are chambers isolated from, but connected to, the main flow of water in a flume, weir, or channel.  Isolating the stilling well from the main flow via a small connector dampens or quiets the body of water in stilling well, while still allowing it follow the…

Weir boxes are frequently fabricated without the use of a baffle upstream of the point of measurement.  The omission of a baffle plate (sometimes called surge plates) saves both space and money, but at what cost?  In applications where the velocity profile is normal and…