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Article Dans Une Revue Physics of Fluids Année : 2005

Penetration of negatively buoyant jet in a miscible liquid

Pierre Philippe
Christophe Raufaste
Pascal Kurowski
  • Fonction : Auteur
Philippe Petitjeans
  • Fonction : Auteur
  • PersonId : 831549

Résumé

We report experimental results on the evolution of a laminar liquid jet injected with negatively buoyant condition in a miscible surrounding liquid. Since molecular di®usion is negligible, the only signi¯cant miscible e®ect is the absence of any surface tension. After an initial intrusion phase, the jet reaches a steady-state characterized by a constant penetration depth. A simple theoretical model is derived and successfully predicts the transient phase as well as the subsequent steady-state in terms of stationary penetration depth and jet's pro¯le. All the experimental points collapse on a master curve involving two dimensionless numbers: the densimetric Froude number Fr and S, a number comparing viscous friction to buoyancy. Finally, this curve obtained for laminar °ows is compared to classical results on turbulent fountains.
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Dates et versions

hal-00015872 , version 1 (14-12-2005)

Identifiants

  • HAL Id : hal-00015872 , version 1

Citer

Pierre Philippe, Christophe Raufaste, Pascal Kurowski, Philippe Petitjeans. Penetration of negatively buoyant jet in a miscible liquid. Physics of Fluids, 2005, 17, pp.601_1-601_10. ⟨hal-00015872⟩
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