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Sand Ripples Induced by Water Shear Flow in an Annular Channel

DOI zum Zitieren dieses Dokuments: https://doi.org/10.1103/PhysRevLett.83.88
URN to cite this document: urn:nbn:de:bvb:703-epub-4043-1

Title data

Betat, André ; Frette, Vidar ; Rehberg, Ingo:
Sand Ripples Induced by Water Shear Flow in an Annular Channel.
In: Physical Review Letters. Vol. 83 (July 1999) Issue 1 . - pp. 88-91.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.83.88

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Abstract

We have studied experimentally the formation and evolution of sand ripples under water shear flow in a narrow annular channel. The amplitude of the sediment ripples vanishes at a critical value of the shear rate. Near this onset, a band of Fourier modes can be described by exponential growth functions. The growth rates vary linearly with the shear rate. On longer times the sand ripples display complex dynamics.

Further data

Item Type: Article in a journal
Additional notes (visible to public): Quelle der Zweitveröffentlichung: Physical Review Letters 83:1, American Physical Society doi:10.1103/PhysRevLett.83.88
Keywords: Granular systems; Sediment transport; 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 > 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
Language: English
Originates at UBT: No
URN: urn:nbn:de:bvb:703-epub-4043-1
Date Deposited: 22 Feb 2019 10:24
Last Modified: 22 Feb 2019 10:24
URI: https://epub.uni-bayreuth.de/id/eprint/4043

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