Dual Drainage Examples

  • A constant 3% slope stretch of street with sewer pipe underneath, the street is 20ft wide and 1ft tall, the sewer pipe is 1.5ft in diameter

Base Scenario: No inlets with 15cfs constant flow at upstream node (N1)

  • Flow will fill in N1 and start to flow in the sewer pipe down stream
  • Since there is no surcharge, the flow never reached the street level

Scenario 15cfs with inlet 3cfs max flow

  • 15cfs is loaded at N1
  • All the inlets have an max. capture of 3cfs
  • For N1, 3cfs goes into the sewer pipe, and 12 cfs goes down the street
  • At N2, another 3cfs goes into the sewer pipe, and 9 cfs goes down the street, etc.




Empowering Water Experts

Love podcasts or audiobooks? Learn on the go with our new app.

Recommended from Medium

Bash aliases

Bash shell

Constructors should not be used to instantiate “String”, “BigInteger”, “BigDecimal” and…

A lot of research is being conducted on this treatment

How we made our own no-code apps with Coda to plan, organize, and execute Zero to Revenue

Building Your Unity 2021 Project for itch.io

Cool Python: Create Dynamic Stacks of Functions

Dynamo Summary [System Design]

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Mel Meng

Mel Meng

Empowering Water Experts

More from Medium

How to get system statistics out of XPSWMM Model

Google One Tap

Quick Notes on Python with Modules