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IRSN, Institut de radioprotection et de sûreté nucléaire

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Collapse Dynamics and Runout of Dense Granular Materials in a Fluid: videos 1 and 2


Theses videos show the collapse of fixed width granular column:

- on the first, aspect ratio a=7, without fluid

- on the second, aspect ratio a=7, with water.

 

Grains diameter = 10-3 m, grains density = 2.6. The viscous fluid has a 1000 higher viscosity than water.

 

The color levels indicate the particles and fluid velocities (red for the higher velocities, blue for the lowest ones).

Granular column collapse. Aspect ratio a=7, without fluid.  © IRSN

 

 


 Granular column collapse. Aspect ratio a=7, with water.  © IRSN

 

 


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