This course will provide you with the foundations of 1D sub-surface drainage modelling within Flood Modeller. It will cover an introduction to the urban solvers and tips on file management and best practices.

By the end of the course, you will be able to build a 1D urban model independently, understanding the components involved and how and when to edit key parameters. You will gain experience in building a sub-surface network of culverts and manholes and learn how to add inflows to represent surface water draining into the manholes. You will also learn how to run an unsteady (full hydrograph) simulation and visualise the results, e.g., flow and stage, through both plots and animations.

You will learn how to build a culverted watercourse and examine its interaction with the land by creating a linked urban-2D model. You will investigate pressurised flow and backwater effects, learning how to create configurations to allow water to “pond” on top of manholes (and potentially return to the sub-surface pipe network).

You will also investigate interactions between urban networks and river networks, learning how to create a linked urban-river model.

The course covers an overview of the methods available for editing urban networks, and you will utilise these methods to adjust the geometry of culverts and the elevation of manholes. You will also gain experience in viewing diagnostic logs and checking mass balance to confirm the validity of your results.