Flood over Dry Bed due to Partial Dam Breach

The Dam is breached in the middle over its entire height. The resulting wave advances over a dry land limited by vertical walls on the sides. It is interesting to observe the front wave and the cross-wave pattern generated by the reflection on the vertical side walls. The reservoir behind the dam is limited by a vertical wall at the upstream boundary. The reflections of the negative wave on the upstream wall and side walls create surface oscillations in the reservoir during emptying.
TORO3_ANIMATION.avi (58.5 MB, AVI Video)



Dam-break Flood over a Conical Hill

The flood wave due to complete failure of the dam passes over a conical hill situated at the downstream flat terrain. It is interesting to note the interaction of the waves generated by the conical hill and the reflections from the vertical walls on all sides.
cone_fieldview_animation.avi (29.8 MB, AVI Video)



Toce River Valley flood simulation (2D)

The Toce River Valley in the Northern Alps, Italy, is a a pilot area for studying catastrophic flood events. A 5km reach of the valley has been reproduced on a 1:100 scale physical model. The experimental data (topographic data, inflow hydrographs, hydraulic conditions and physical parameters and water elevations measured at 32 gauging stations) is available as benchmark data for testing numerical models. Two different dam-break test cases are available; one with the flood wave overtopping a reservoir located in the middle of the valley, and the other without overtopping. The case with overtopping of the reservoir was used to validate CCHE-FLOOD.

Toce2d_Run4_animation.avi (52.1 MB, AVI Video)



Toce River Valley flood simulation (1D)

The Toce River Valley in the Northern Alps, Italy, is a a pilot area for studying catastrophic flood events. A 5km reach of the valley has been reproduced on a 1:100 scale physical model. The experimental data (topographic data, inflow hydrographs, hydraulic conditions and physical parameters and water elevations measured at 32 gauging stations) is available as benchmark data for testing numerical models. Two different dam-break test cases are available; one with the flood wave overtopping a reservoir located in the middle of the valley, and the other without overtopping. The case with overtopping of the reservoir was used to validate CCHE-FLOOD.

Toce1D_Hydrograph2_nop.avi (48.5 MB, AVI Video)



Catastrophic Flooding due to Malpasset Dam-Break

In December 2, 1959, the 66,5m-high, double-curvature Malpasset arch dam located in a narrow gorge of the Reyran river valley, France, literally exploded. The resulting flood destroyed downstream villages and claimed more than 400 lives. The trace marks left by this catastrophic flood showed water depths of 20m above the original bed level. The 2D CCHE-FLOOD was used to simulate the flood resulting from the Malpasset dam-break.
Malp_2d_blue.avi (26.6 MB, AVI Video)