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Rayleigh-Taylor instability in a sedimenting suspension

URN to cite this document: urn:nbn:de:bvb:703-epub-4031-5

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 der Verlagsversion: https://doi.org/10.1103/PhysRevE.65.011404

Format:	PDF
Name:	PhysRevE.65.011404.pdf
Version:	Published Version
Available under License	German copyright law. This contribution is freely accessible with the consent of the copyright holder on the basis of an (DFG-funded) alliance or national license. The document may be used free of charge for personal use. In addition, the reproduction, editing, distribution and any kind of exploitation require the written consent of the respective rights holder.

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Abstract

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
Keywords:	Suspensions, dispersions, pastes, slurries, colloids; Interfacial instabilities (e. g., Rayleigh-Taylor; Pattern selection, pattern formation.
DDC Subjects:	500 Science > 530 Physics
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors > 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 Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-4031-5
Date Deposited:	19 Feb 2019 09:47
Last Modified:	06 Jul 2020 10:44
URI:	https://epub.uni-bayreuth.de/id/eprint/4031

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