https://github.com/erdc/levee-femtec2011

Talk on levee modeling for FEMTEC 2011
https://github.com/erdc/levee-femtec2011

Last synced: 4 months ago
JSON representation

Talk on levee modeling for FEMTEC 2011

• Host: GitHub
• URL: https://github.com/erdc/levee-femtec2011
• Owner: erdc
• Created: 2011-05-06T21:39:59.000Z (about 15 years ago)
• Default Branch: master
• Last Pushed: 2011-05-14T15:42:50.000Z (about 15 years ago)
• Last Synced: 2024-04-15T00:05:23.061Z (about 2 years ago)
• Homepage:
• Size: 65.4 MB
• Stars: 1
• Watchers: 6
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README

Awesome Lists containing this project

README

          
Levee Talk for FEMTEC 2011

Multiscale Numerical Modeling of Levee Breach Processes

FEMTEC 2011

May 9 - 13

South Lake Taho, CA

C. E. Kees

US Army ERDC, Vicksburg, MS, USA

christopher.e.kees@usace.army.mil

M. W. Farthing

US Army ERDC, Vicksburg, MS, USA

matthew.w.farthing@usace.army.mil

I. Akkerman

US Army ERDC, Vicksburg, MS, USA

idoakkerman@gmail.com

Y. Bazilevs

Structural Engineering, University of Caifornia, San Diego, CA, USA

jbazilevs@ucsd.edu

Abstract

One of the dominant failure modes of levees during flood and storm

surge events is erosion-based breach formation due to high velocity

flow over the back (land-side) slope. Modeling the breaching process

numerically is challenging due to both physical and geometric

complexity that develops and evolves during the overtopping event. The

surface water flows are aerated and sediment-laden mixtures in the

supercritical and turbulent regimes. The air/water free surface may

undergo perturbations on the same order as the depth or even

topological change (breaking). Likewise the soil/fluid interface is

characterized by evolving headcuts, which are essentially moving

discontinuities in the soil surface elevation. The most widely used

models of levee breaching are nevertheless based on depth-integrated

models of flow, sediment transport, and bed morphology. In this work

our objective is to explore models with less restrictive modeling

assumptions, which have become computationally tractable due to

advances in both numerical methods and high-performance computing

hardware. In particular, we present formulations of fully

three-dimensional flow, transport, and morphological evolution for

overtopping and breaching processes and apply recently developed finite

element and level set methods to solve the governing equations for

relevant test problems.