Difference between revisions of "Flow through an orifice"

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(Created page with " <math>Q= B\times C_{d}\times A_{o}\sqrt{2\cdot g\cdot h}</math> {{Plainlist|1=Where: *''L'' is the length of perforated pipe (m) *''B'' is the clogging factor (between 0.5...")
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Revision as of 22:35, 20 November 2018


Where:

  • L is the length of perforated pipe (m)
  • B is the clogging factor (between 0.5 (for matured installation) and 1 (for a new perfectly performing BMP)),
  • Cd is the coefficient of discharge (usually 0.61 for a plate, or 0.8 for a pipe),
  • Ao is the area of the orifice (m2/m),
  • g is acceleration due to gravity = 9.81 m/s2, and
  • h is the head of water over the centre of the orifice.

see Also[edit]