Comparison between numerical and experimental results on thermoconvective instabilities of a high-Prandtl-number liquid - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2007

Comparison between numerical and experimental results on thermoconvective instabilities of a high-Prandtl-number liquid

Résumé

The flow structuration of silicon oil ͑Prandtl number of 10.3͒ in a open cylindrical pool heated from the center of the surface is investigated numerically. Our purpose is to perform the numerical simulation of experimental results obtained by Favre et al. ͓Phys. Fluids 9, 1473 ͑1997͔͒ who observed transitions between steady and axisymmetric flows at sufficiently low values of the Marangoni number ͑Ma͒ and various types of instability depending on the height of the fluid. The hydrothermal wave regime has been obtained at critical values of Ma which depend on the Bond number and on the aspect ratio. The numerical results are in good agreement with the experimental ones.
Fichier principal
Vignette du fichier
PhysRevE.76.066307.pdf (959.05 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

cea-01373399 , version 1 (28-09-2016)

Identifiants

Citer

Emilien Sauvage, Laetitia Jacoutot, Yves Fautrelle, Annie Gagnoud, Laure Blumenfeld, et al.. Comparison between numerical and experimental results on thermoconvective instabilities of a high-Prandtl-number liquid. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2007, 76 (6), pp.066307. ⟨10.1103/PhysRevE.76.066307⟩. ⟨cea-01373399⟩
213 Consultations
277 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More