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Orifices are simply holes which restrict the flow of water. They may be used at the bottom end of an LID practice to add some [[flow control]].
Orifices are simply holes which restrict the flow of water. They may be used at the bottom end of an LID practice to add some [[flow control]]:
<math>Q= B\times C_{d}\times A_{o}\sqrt{2\cdot g\cdot h}</math>
<math>Q= B\times C_{d}\times A_{o}\sqrt{2\cdot g\cdot h}</math>