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Grain size dependence of barchan dune dynamics

Title data

Groh, Christopher ; Aksel, Nuri ; Rehberg, Ingo ; Krülle, Christof A.:
Grain size dependence of barchan dune dynamics.
In: Nakagawa, Masami (ed.): Powders and grains 2009. - Melville, NY : American Institute of Physics , 2009 . - pp. 955-958 . - (AIP Conference Proceedings ; 1145 )
ISBN 978-0-7354-0682-7
DOI: https://doi.org/10.1063/1.3180089

Abstract in another language

The dependence of the barchan dune dynamics on the size of the grains involved is investigated experimentally. Downsized barchan dune slices are observed in a narrow water flow tube. The relaxation time from an initial symmetric triangular heap towards an asymmetric shape attractor increases with dune mass and decreases with grain size. The dune velocity increases with grain size. In contrast, the velocity scaling and the shape of the barchan dune is independent of the size of the grains.

Further data

Item Type: Article in a book
Refereed: Yes
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
Faculties > Faculty of Engineering Science > Chair Applied Mechanis and Fluid Dynamics > Chair Applied Mechanis and Fluid Dynamics - Univ.-Prof. Dr. Nuri Aksel
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
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Applied Mechanis and Fluid Dynamics
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 17 Aug 2018 06:58
Last Modified: 17 Aug 2018 06:58
URI: https://eref.uni-bayreuth.de/id/eprint/45526