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Bioretention: Sizing
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Revision as of 17:21, 20 May 2020
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→Drainage time (3D)Woods Ballard, B., S. Wilson, H. Udale-Clarke, S. Illman, T. Scott, R. Ahsley, and R. Kellagher. 2016. The SuDS Manual. 5th ed. CIRIA, London.
Line 174:
Line 174:
*To estimate the time (''t'') to fully drain the facility
*To estimate the time (''t'') to fully drain the facility
−
t = [n<sub>r</sub>' * A<sub>p</sub>/f'*x] * ln[(d<sub>r</sub> + (A<sub>p</sub>/x)/A<sub>p</sub>/x]
+
''
t = [n<sub>r</sub>' * A<sub>p</sub>/f'*x] * ln[(d<sub>r</sub> + (A<sub>p</sub>/x)/A<sub>p</sub>/x]
''
{{Plainlist|1=Where:
{{Plainlist|1=Where:
*''n<sub>r</sub>''' is the effective porosity of the storage reservoir fill material(s),
*''n<sub>r</sub>''' is the effective porosity of the storage reservoir fill material(s),
Dean Young
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