8,255
edits
Changes
Jump to navigation
Jump to search
no edit summary
Line 2:
Line 2:
To completely capture linear flow travelling along a gutter perpendicular to a curb inlet, the inlet must be of width::
To completely capture linear flow travelling along a gutter perpendicular to a curb inlet, the inlet must be of width::
<math>W_T=0.817Q^{0.42}S_{0}^{0.3}\left (\frac{1}{nS_{x}}\right)^{0.6}</math>
<math>W_T=0.817Q^{0.42}S_{0}^{0.3}\left (\frac{1}{nS_{x}}\right)^{0.6}</math>
+
+{{Plainlist|1=Where:
+*''W<sub>T</sub>'' is the width of the inlet in m,
+*''Q'' is the flow perpendicular to the inlet in m<sup>3</sup?/s
+*''S<sub>0</sub>'' is the longitudinal slope
+*''n'' is Manning's 'n' (between 0.012 and 0.016 for concrete, depending on surface treatment),
+*''S<sub>x</sub>'' is the cross slope}}
Where the intention is to capture only a proportion of the flow, the ratio of flow entering the curb inlet may be calculated::
Where the intention is to capture only a proportion of the flow, the ratio of flow entering the curb inlet may be calculated::