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Sand Ripples Induced by Water Shear Flow in an Annular Channel

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 der Verlagsversion: https://doi.org/10.1103/PhysRevLett.83.88

Format:	PDF
Name:	PhysRevLett.83.88.pdf
Version:	Published Version
Available under License	German copyright law. 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

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 > 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:	No
URN:	urn:nbn:de:bvb:703-epub-4043-1
Date Deposited:	22 Feb 2019 10:24
Last Modified:	07 Jul 2020 10:40
URI:	https://epub.uni-bayreuth.de/id/eprint/4043

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