Finger-like patterns in sedimenting water-sand suspensions

Schröter M, Engel A, Rehberg I, Lange A, Betat A, Iori G, Völtz C (2000)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2000

Journal

Physics Reports-Review Section of Physics Letters Elsevier

Publisher: Elsevier

Book Volume: 337

Pages Range: 117-138

URI: https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0001468318&origin=inward

Abstract

The temporal evolution of a water-sand interface driven by gravity is experimentally investigated. By means of a Fourier analysis of the evolving interface the growth rates are determined for the different modes appearing in the developing front. To model the observed behavior we apply the idea of the Rayleigh-Taylor instability for two stratified fluids. Carrying out a linear stability analysis we calculate the growth rates from the corresponding dispersion relations for finite and infinite cell sizes and compose those results with the experimental data. Alternatively, the situation of the sedimenting sand can be modeled by a two-dimensional cellular automaton. A qualitative similarity between that model and the experimental situation is obtained. © 2000 Elsevier Science B.V.

Authors with CRIS profile

Matthias Schröter Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS)

Involved external institutions

Otto-von-Guericke-Universität Magdeburg DE Germany (DE) Universitat de Barcelona (UB) / University of Barcelona ES Spain (ES)

How to cite

APA:

Schröter, M., Engel, A., Rehberg, I., Lange, A., Betat, A., Iori, G., & Völtz, C. (2000). Finger-like patterns in sedimenting water-sand suspensions. Physics Reports-Review Section of Physics Letters, 337, 117-138.

MLA:

Schröter, Matthias, et al. "Finger-like patterns in sedimenting water-sand suspensions." Physics Reports-Review Section of Physics Letters 337 (2000): 117-138.

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