Rupture of an Evaporating Liquid Bridge between Two Grains - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Geophysica Année : 2014

Rupture of an Evaporating Liquid Bridge between Two Grains

Résumé

The study examines rupture of evaporating liquid bridges between two glass spheres. Evolution of the bridge profile has been recorded with the use of high-speed camera. Geometrical characteristics of the bridge were then used to calculate evolution of the variables during the process: Laplace pressure, capillary force, and surface tension force. For the purpose of reference, the bridge evolution is followed also during kinematic extension. During both processes the diameter of the neck decreases, with an acceleration of about 1–2 ms before the rupture. Two distinct rupture modes are observed, depending on the bridge aspect ratio. After the rupture, the mass of liquid splits, forming two separate oscillating drops attached to the spheres, and a suspended satellite droplet. Just before the rupture, an increasing repulsive Laplace pressure, and decreasing negative surface tension force develop. Capillary force follows the trend of the surface tension force, with an accelerating decline. Duration of the whole process and liquid mass stabilization is from 10 to 60 ms.

Domaines

Génie civil
Fichier principal
Vignette du fichier
Rupture_evaporating_liquid_bridge_Mielniczuk_al_2014.pdf (969.36 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01141503 , version 1 (13-04-2015)

Identifiants

Citer

Boleslaw Mielniczuk, Moulay Saïd El Youssoufi, Laurent Sabatier, Tomasz Hueckel. Rupture of an Evaporating Liquid Bridge between Two Grains. Acta Geophysica, 2014, 62 (5), pp.1087-1108. ⟨10.2478/s11600-014-0225-6⟩. ⟨hal-01141503⟩
190 Consultations
165 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More