Universität zu Köln

Michelsen, Britt, Strobl, Severin ORCID: 0000-0002-1636-5368, Parteli, Eric J. R. and Poeschel, Thorsten (2015). Two-dimensional airflow modeling underpredicts the wind velocity over dunes. Sci Rep, 5. LONDON: NATURE PUBLISHING GROUP. ISSN 2045-2322

Full text not available from this repository.

Abstract

We investigate the average turbulent wind field over a barchan dune by means of Computational Fluid Dynamics. We find that the fractional speed-up ratio of the wind velocity over the three-dimensional barchan shape differs from the one obtained from two-dimensional calculations of the airflow over the longitudinal cut along the dune's symmetry axis-that is, over the equivalent transverse dune of same size. This finding suggests that the modeling of the airflow over the central slice of barchan dunes is insufficient for the purpose of the quantitative description of barchan dune dynamics as three-dimensional flow effects cannot be neglected.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Michelsen, Britt UNSPECIFIED UNSPECIFIED UNSPECIFIED Strobl, Severin UNSPECIFIED orcid.org/0000-0002-1636-5368 UNSPECIFIED Parteli, Eric J. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Poeschel, Thorsten UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-386944
DOI:	10.1038/srep16572
Journal or Publication Title:	Sci Rep
Volume:	5
Date:	2015
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	LONDON
ISSN:	2045-2322
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SAND DUNES; TRANSVERSE DUNES; DYNAMICS; FIELD; SEPARATION; TRANSPORT; BARCHANS; SHAPE; LEE Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/38694