Overview

An introductory course to the unsteady hydraulic model within HEC-RAS.  At the end of the course the delegate should be able to construct a simple unsteady state model including off-line structures such as storage reservoirs and lateral weirs.

Who should attend

Engineers and scientists wishing to undertake flood mapping studies, breach analyses and flood storage calculations.   A basic knowledge of using HEC-RAS for steady state modelling is assumed.

Course outcomes

After the course delegates will be able to:

• Decide when to use unsteady models


• Build a simple unsteady model


• Convert steady state models to unsteady


• Undertake breach analysis


• View results


• Undertake  basic troubleshooting


• Know whether or not an unsteady flow model is required

Topics covered

• Principles of 1D unsteady state modelling


• Data requirements (unsteady flow files)


• Running an unsteady model and analysing the output


• Lateral weirs and gates


• Pumping stations


• Approaches to modelling floodplains: extended sector, off-line storage and parallel conveyance


• Modelling dam-breach


• HEC-RAS Routing Sections


• RAS-Mapper


• Optimal computational time step

Delivery

Presentations followed by hands-on exercises using HEC-RAS (version 4.1).

Related courses

This course is stand-alone but can also be taken together with one or more of our other HEC-RAS courses to meet your exact requirements:

• Introduction to HEC-RAS - basic primer to the steady hydraulic model


• Advanced HEC-RAS – split flow optimisation and hydraulic properties table


• HEC-RAS Master Class - increasing productivity through links to GIS and also using the hydraulic design functions

Software/publications

If you wish to purchase a copy of the HEC-RAS software please see software pages.  The textbook ‘Floodplain Modelling using HEC-RAS’ is also a useful addition to this course 

Summary

• Intermediate one day course


• A comprehensive set of course notes together with example worked solutions for the exercises will be provided


• Counts as 6 CPD/CET hours

Presenters

Matthew Scott BSc MSc

Jeremy Benn FREng  MA MSc FICE FCIWEM C.WEM MASCE MIEI CEng CEnv