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Dry Bed Dam Break

Reference

  • U.S. Army Engineer Waterways Experiment Station (1960). "Floods resulting from suddenly breached dams: Conditions of minimum resistance." Paper: 2-237, report 1.
  • U.S. Army Engineer Waterways Experiment Station (1961). "Floods resulting from suddenly breached dams: Conditions of maximum resistance." Paper: 2-374, report 2.

Domain

  • rectangular flume with sloping bed elevation
  • flume length = 121.9 m
  • flume width = 1.2 m
  • bed slope = 0.0015
  • dam location at 61 m

Dry dam break domain

Initial Conditions

  • pooled water upstream of dam (left) with 0.3048 m at x = 61 m (dam face)
  • no water downstream of the dam
  • Friction defined by Manning's n = 0.009

Dry dam break dimensions

Boundary Conditions

  • no flow boundaries
  • dam removed at t = 0 s

Run Files

The mesh (*.3dm), boundary condition (*.bc), and hotstart (*.hot) file can be downloaded from https://github.com/erdc/AdH-V-V-input-files.

  • ERDC-dambreak.3dm
  • ERDC-dambreak.bc
  • ERDC-dambreak.hot

Results

  • Comparison to flume experiment at the locations in the previous image
  • Depth comparison to measured data over time

dry dam break station 160

dry dam break station 191

dry dam break station 200

dry dam break station 225

dry dam break station 275

dry dam break station 345

dry dam break results