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Communication Dans Un Congrès Année : 2014

Role of dilute oil-in-water emulsion in the destabilization mechanism of a liquid sheet

Clara Vernay
  • Fonction : Auteur
  • PersonId : 957549
Laurence Ramos
Jean-Christophe Castaing
  • Fonction : Auteur
Rajesh Goyal
  • Fonction : Auteur
Christian Ligoure
  • Fonction : Auteur
  • PersonId : 874073

Résumé

Pesticide spraying in agriculture involves atomizing a liquid stream through a hydraulic nozzle. The spray droplets results from the destabilization of a liquid sheet formed by the nozzle. Standard pesticide solution adjuvants as dilute solution of long polymer chains or dilute emulsions are known to influence the spray drop size distribution. Although being documented, these effects are not understood yet. In order to elucidate the physical mechanisms at the origin of the change on the drop size distribution, we investigate the influence of different complex fluids on the destabilization mechanisms of liquid sheets. We here form liquid sheets by the collision of a liquid drop on a small solid target. Upon impact, the drop flattens into a radial sheet expanding in the air bounded by a thicker rim.
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Dates et versions

hal-01009203 , version 1 (17-06-2014)

Identifiants

  • HAL Id : hal-01009203 , version 1

Citer

Clara Vernay, Laurence Ramos, Jean-Paul Douzals, Jean-Christophe Castaing, Rajesh Goyal, et al.. Role of dilute oil-in-water emulsion in the destabilization mechanism of a liquid sheet. SoftComp & ESMI Annual Meeting, May 2014, Heraklion, Greece. ⟨hal-01009203⟩
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