Related Experiment Video
Updated: Aug 15, 2026

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation
Published on: November 18, 2015
Surface models for coupled modelling of runoff and sewer flow in urban areas
Abstract:
Traditional methods fail for the purpose of simulating the complete flow process in urban areas as a consequence of heavy rainfall and as required by the European Standard EN-752 since the bi-directional coupling between sewer and surface is not properly handled. The new methodology, developed in the EUREKA-project RisUrSim, solves this problem by carrying out the runoff on the basis of shallow water equations solved on high-resolution surface grids. Exchange nodes between the sewer and the surface, like inlets and manholes, are located in the computational grid and water leaving the sewer in case of surcharge is further distributed on the surface. Dense topographical information is needed to build a model suitable for hydrodynamic runoff calculations; in urban areas, in addition, many line-shaped elements like houses, curbs, etc. guide the runoff of water and require polygonal input. Airborne data collection methods offer a great chance to economically gather densely sampled input data.
Related Concept Videos
Typical Model Studies
Modeling and Similitude
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Design Example: Design of an Irrigation Channel
Design Example: Creating a Hydraulic Model of a Dam Spillway
Linear Approximations

