Investigating the Relationship between the Manning Coefficients (n) of a Perforated Subsurface Stormwater Drainage Pipe and the Hydraulic Parameters

• Main Authors: Abdullah J., Mohd Arif Zainol M.R.R., Riahi A., Zakaria N.A., Yusof M.F., Shaharuddin S., Alias M.N., Mohd Kasim M.Z., Abdul Aziz M.S., Mohamed Noor N., Zawawi M.H., Ikhsan J.
• Other Authors: 55109846800
• Format: Article
• Published: MDPI 2024
• Subjects: Manning coefficient; sand-slot perforated pipe; stormwater runoff; urban subsurface drainages; Malaysia; drainage basin; flow velocity; hydraulic property; peak flow; runoff; subsurface flow

Subsurface perforated pipes drain infiltrated stormwater runoff while attenuating the peak flow. The Manning roughness coefficient (n) was identified as a fundamental parameter for estimating roughness in various subsurface channels. Hence, in this work, the performance of a six-row non-staggered sa...