Flumeġ.8.0 is stable, production-ready software, and is backwards-compatible with Version 1.8.0 is the eleventh Flume release as an Apache top-level project. The Apache Flume team is pleased to announce the release of Flume 1.8.0.įlume is a distributed, reliable, and available service for efficientlyĬollecting, aggregating, and moving large amounts of streaming event data. The Apache Flume Team OctoApache Flume 1.8.0 Released
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Your contributions, feedback, help and support make Flume better!įor more information on how to report problems or contribute, This release can be downloaded from the Flume Download page. With our fiberglass weirs and flumes, our team can help you craft a custom design uniquely suited for your flow channel conditions.The full change log and documentation are available on the flume can be tough, but Tracom is happy to help no matter which direction you’re leaning. Weirs and Flumes From Tracomĭeciding between weir vs. While H-type and trapezoidal flumes are generally pretty accurate compared to weirs, some Palmer-Bowlus and Montana designs can fall short in some cases. Additionally, not all flume styles are created equal. The size also increases installation costs. That alone can increase the price unless you opt for a material with an easy fabrication process like fiberglass. They tend to be much more massive than weirs, which means it takes far more material and work to even get one constructed in the first place. The first major disadvantage is their size. No solution is perfect, and flumes are no exception. Additionally, flumes come in a wide variety of shapes and sizes useful for applications in several different flow channels and conditions. It’s not perfect, of course, but you’ll find yourself having to perform maintenance far less often. Additionally, they’re often used with high-velocity flows, and that alone tends to clean the flume as the flow passes through.
They don’t have to use a dam-like structure such as a weir plate, so there’s nothing for debris to get caught behind. One of the most useful is their self-cleaning design. Flume Advantagesįlumes contain a variety of advantages that could be perfect for your flow channel. Debris will always collect behind the weir plate, and it’ll have to be cleaned regularly. The most influential disadvantage, however, is the required maintenance compared to flumes. Rectangular weirs have a bit more leeway, though, with a head limit of 5 feet. You’ll also find serious limitations on head limits as they can be no more than 2 feet when working with a V-notch weir. While they are generally more accurate under laboratory conditions, that often doesn’t translate to real-world applications, as installation and calibration errors can make a weir inaccurate. There are a few disadvantages to be aware of before you decide to go with a weir. V-notch weirs, in particular, are easy to work with because there are universal free-flow equations available that apply to any angle between 25 and 100 degrees. When you’re using a standard weir, accuracy is generally between +/-2% when tested under laboratory conditions.
They’re relatively affordable, and installation is easy. If you’re looking for a simple solution to open channel flow measurement, a weir is your best bet. Here’s everything you need to know about deciding between weir vs. Both have plenty of advantages and disadvantages, so you’ll have to consider them all when determining which will best fit your unique channel needs.
You can either opt for a weir or a flume. When it comes to open channel flow measurement, there are two primary devices you can use.
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