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  • Video 
    What is a Hydraulic Jump?

    What is a Hydraulic Jump?

    Engineers need to be able to predict how water will behave in order to design structures that manage or control it. And fluids don’t always behave the way you’d expect. On this episode, we’re talking about one of the most interesting phenomena in open-channel flow: the hydraulic jump.

    Subjects:
    Hydraulic Engineering
    Keywords:
    Hydraulics Hydraulic jump
    Resource Type:
    Video
     
  • Video 
    What is a Weir?

    What is a Weir?

    A weir is a small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. Unlike large dams which create reservoirs, the goal of building a weir across a river isn’t to create storage, but only to gain some control over the water level. Over time, the term weir has taken on a more general definition in engineering to apply to any hydraulic control structure that allows water to flow over its top, often called its crest. In fact, the spillways of many large dams use weirs as control structures. So how do they work?

    Subjects:
    Hydraulic Engineering
    Keywords:
    Dams Hydraulics Weirs
    Resource Type:
    Video
     
  • Video 
    The Most Dangerous Dams

    The Most Dangerous Dams

    Dams serve a wide variety of purposes from hydropower to flood control to storage of water for municipal and industrials uses. But when a dam’s useful purpose fades away, the structure itself still remains. Dams come in all shapes and sizes, but contrary to what you might think, the most dangerous dams are often the smallest, also known as low head dams.

    Subjects:
    Hydraulic Engineering
    Keywords:
    Dam safety Dams Hydraulics
    Resource Type:
    Video