CFD Review  
Serving the CFD Community with News, Articles, and Discussion
CFD Review

User Preferences
Site Sponsorship
Headline Feeds
Mobile Edition
Privacy Policy
Terms of Service

Submit a CFD Story

Site Sponsors
Siemens PLM Software
The Choice for CFD Meshing
CFD Review

Tell a Friend
Help this site to grow by sending a friend an invitation to visit this site.

CFD News by Email
Did you know that you can get today's CFD Review headlines mailed to your inbox? Just log in and select Email Headlines Each Night on your User Preferences page.

Dam Break Modelling to Help Flood Planning
Posted Tue June 14, 2011 @05:13PM
Print version Email story Tweet story
Application CSIRO scientists have developed powerful modelling techniques to help understand the full impact of flooding that occurs when dams collapse.

The research has been helping China’s disaster management authorities better understand the full impact of the catastrophic flooding that would occur if one of China’s, and the world’s, biggest dams collapsed.

Sponsor CFD Review

Working with China’s Satellite Surveying & Mapping Application Centre (SASMAC), CSIRO scientists have modelled the effects of a catastrophic failure of the massive Geheyan Dam in China’s Hubei province. They have simulated the impact of flooding on the surrounding region and its infrastructure if the dam suddenly released its 3.12 billion cubic metres of water.

Flooding after the Geheyan Dam breaks up piece by piece. © Copyright CSIRO Australia,2011.

The Geheyan Dam holds more than five times the volume of water in Sydney Harbour. Dam failure is of particular concern in China because many of the country’s 70,000 dams are in regions prone to earthquakes.

“We modelled six different dam failure scenarios,” said CSIRO computational scientist, Dr Mahesh Prakash. “Our simulations show where the water would go, how fast it would reach important infrastructure such as power stations and the extent of inundation in major townships downstream.”

Flooding in a town below the Geheyan Dam. The colour of the water indicates flow speed (red is fast, blue is slow). © Copyright CSIRO Australia,2011.

SASMAC’s Professor Xinming Tang said the project is immensely important for disaster management planning.

“Seeing the possible consequences of dam failure enables us to develop appropriate emergency procedures as well as plan new infrastructure safely,” Professor Tang said.

CSIRO’s innovative approach combines data that changes over time – the water flow – with static landscape data from a Geographic Information System to show how infrastructure will be affected.

“The modelling technique we developed for this work is really powerful,” Dr Prakash said. “It gives us very realistic water simulations including difficult-to-model behaviours such as wave motion, fragmentation and splashing.”

The team at CSIRO used the same technique and software to model other catastrophic geophysical flow events like tsunamis, floods, storm surges as well as landslides and volcanoes. The technique was tested by modelling the 1928 St Francis dam break in California which produced a very accurate simulation of what happened in real life.

[ Post Comment ]

Symscape's Caedium Bursts CFD to the Cloud | Panther Racing Demonstrates Simulation Leads to Engineering Success  >


CFD Review Login
User name:


Create an Account

Related Links
  • More on Application
  • Also by nwyman
  • This discussion has been archived. No new comments can be posted.

    F.S. Fitzgerald to Hemingway: "Ernest, the rich are different from us." Hemingway: "Yes. They have more money." All content except comments
    ©2018, Viable Computing.

    [ home | submit story | search | polls | faq | preferences | privacy | terms of service | rss  ]