Off-centre impact on a horizontal fibre - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue The European Physical Journal. Special Topics Année : 2009

Off-centre impact on a horizontal fibre

Résumé

Fibre filters that consist of a network of randomly oriented thin fibres are commonly used to recover the liquid phase from an aerosol. During the filtration process, drops of the aerosol impact the solid fibres of the filter. If the impact velocity is smaller than a threshold velocity Vc, the drop is entirely captured by the fibre whereas if the velocity is larger than Vc, only a small portion of fluid remains trapped on the solid fibre. While this threshold velocity has been determined when the impact is centred – i.e. when the trajectory of the drop and the axis of the fibre do intersect – fewer studies are related to off-centre impact. Here, we focus on the influence of the relative position of the drop and the fibre on the impact. For velocity larger than Vc, we vary the eccentricity and measure the ability of the fibre to retain the liquid phase. Quite surprisingly, we show that off-centre impact situation enhances the ability of the fibre to capture a portion of the drop.
Fichier principal
Vignette du fichier
Lorenceau-2009.pdf (264.43 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-02357000 , version 1 (22-08-2022)

Identifiants

Citer

E. Lorenceau, C. Clanet, D. Quéré, M. Vignes-Adler. Off-centre impact on a horizontal fibre. The European Physical Journal. Special Topics, 2009, 166 (1), pp.3-6. ⟨10.1140/epjst/e2009-00868-0⟩. ⟨hal-02357000⟩
24 Consultations
17 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More