Breaking of liquid bridge between two grains due to its evaporation or extension

Boleslaw Mielniczuk (1, 2, 3) , Moulay Saïd El Youssoufi (1, 2, 3) , Tomasz Hueckel (4) , Laurent Sabatier (5, 1, 2)

1 MIST - Laboratoire de micromécanique et intégrité des structures
2 LMGC - Laboratoire de Mécanique et Génie Civil
3 PMMG - Physique et Mécanique des Milieux Granulaires
4 Duke University [Durham]
5 Servex - Moyens expérimentaux

The main aim of these studies is to examine the process of rupture of water bridge between two glass spheres during its convective evaporation or mechanical extension. Evolution of bridge profile was recorded with use of high-speed camera, with frame rate up to 54000 frames per second, and subsequently digitalized. Digital image processing allows to determine several geometrical parameters: curvature of the surface of the water body (gorge radius, external shape radius), water wire dimensions, satellite drop radius. Basing on these parameters time evolution of following parameters was calculated: capillary force (gorge method) and suction and surface tension force components, frequency of oscillation of satellite droplet and remaining water caps, capillary force jump.

Domaines: Génie civil

Boleslaw Mielniczuk, Moulay Saïd El Youssoufi, Tomasz Hueckel, Laurent Sabatier. Breaking of liquid bridge between two grains due to its evaporation or extension. XVI French-Polish Colloquium of Soil and Rock Mechanics, Laboratoire de Mécanique et Génie Civil, Jul 2013, Montpellier, France. ⟨hal-01102822⟩