Related Experiment Video
Updated: May 2, 2026

Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure
Published on: April 25, 2025
A bottom-up approach to estimate dry weather flow in minor sewer networks
J A Elías-Maxil1, Jan Peter van der Hoek2, Jan Hofman3
1Department of Water Management, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
Abstract:
In order to evaluate the feasibility of installing decentralised installations for wastewater reuse in cities, information about flows at specific spots of a sewer is needed. However, measuring intermittent flows in partially filled conduits is a technical task which is sometimes difficult to accomplish. This paper describes a method to model intermittent discharges in small sewers by linking a stochastic model for wastewater discharge to a hydraulic model to predict the attenuation of the discharges and its impact on the arrival time to a defined spot. The method was validated in a case study. The model estimated adequately the wastewater discharges on working days.
Related Concept Videos
Uniform Depth Channel Flow: Problem Solving
Design Example: Designing a Residential Plumbing System
Gradually Varying Flow
Single Pipe Systems
In a Type I problem, fluid properties (density and viscosity), pipe characteristics (including diameter, length, and surface roughness), and the flow rate or average velocity are...
Design Example: Design of an Irrigation Channel
Typical Model Studies

