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Rayleigh-Taylor instability in a sedimenting suspension

Title data

Völtz, Camilla ; Pesch, Werner ; Rehberg, Ingo:
Rayleigh-Taylor instability in a sedimenting suspension.
In: Physical Review E. Vol. 65 (January 2001) Issue 1 . - no. 011404.
ISSN 1550-2376
DOI: https://doi.org/10.1103/PhysRevE.65.011404

Abstract in another language

The temporal evolution of an interface between glycerin and a glycerin-sand suspension of small packing fraction (obtained using the hindered settling phenomenon) driven by gravity is experimentally investigated. The growth rates for the different wave numbers characterizing the developing front are determined by means of a Fourier analysis. To model the observed behavior, we apply the idea of the Rayleigh-Taylor instability for a homogeneous fluid with vertically varying density and viscosity (one-fluid model). A good agreement between the experimental and theoretical results is obtained.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Suspensions, dispersions, pastes, slurries, colloids; Interfacial instabilities e. g., Rayleigh-Taylor; Pattern selection, pattern formation
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 05 Oct 2018 11:05
Last Modified: 20 Feb 2019 10:02
URI: https://eref.uni-bayreuth.de/id/eprint/42992