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Flow through an orifice
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Revision as of 13:41, 13 February 2019
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*''B'' is the clogging factor (between 0.5 (for matured installation) and 1 (for a new perfectly performing BMP)),
*''B'' is the clogging factor (between 0.5 (for matured installation) and 1 (for a new perfectly performing BMP)),
*''C<sub>d</sub>'' is the coefficient of discharge (usually 0.61 for a plate, or 0.8 for a pipe),
*''C<sub>d</sub>'' is the coefficient of discharge (usually 0.61 for a plate, or 0.8 for a pipe),
−
*''A<sub>o</sub>'' is the area of the orifice (m<sup>2</sup>
/m
),
+
*''A<sub>o</sub>'' is the area of the orifice (m<sup>2</sup>),
*''g'' is acceleration due to gravity = 9.81 m/s<sup>2</sup>, and
*''g'' is acceleration due to gravity = 9.81 m/s<sup>2</sup>, and
−
*''h'' is the head of water over the centre of the orifice.
+
*''h'' is the head of water over the centre of the orifice
(m)
.
}}
}}
Jenny Hill
8,255
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