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Orifices, Mouthpieces, Notches and Weirs topics include: Orifice, notches and weirs classification, large orifice flows, discharge over notches or weirs, time required to empty reservoir with notches and weirs.
In fluid mechanics, an orifice is a plate with a round hole in the center that is inserted into a line. Orifices are used as fixed throttles that create head loss. The head loss caused by an orifice can be used to determine the volume or mass rate of flow during flow metering.
Here are some other fluid mechanics concepts: Mouthpiece: A small tube or pipe attached to a tank's circular opening so that fluid can be discharged through it Notch: An opening in the side of a tank or vessel where the liquid surface is below the top edge of the opening Weir: A cut in the dam to discharge excess water supply Flow through orifice and mouthpiece: Scientific instruments used in fluids and mechanics machinery
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