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Calculation of the separation streamlines of barchans and transverse dunes

✍ Scribed by H.J. Herrmann; J.S. Andrade Jr.; V. Schatz; G. Sauermann; E.J.R. Parteli

Book ID
103880144
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
531 KB
Volume
357
Category
Article
ISSN
0378-4371

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✦ Synopsis

We use FLUENT to calculate the wind profile over barchans and transverse dunes. The form of the streamlines of flow separation at the lee side of the dunes is determined for a symmetric barchan dune in three dimensions, and for the height profile of a measured transverse dune field in the Lenc -oΒ΄is Maranhenses.

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Grainfall deposition and associated grainflows in the lee of aeolian dunes are important in that they are preserved as cross‐beds in the geological record and provide a key to the interpretation of the aeolian rock record. Despite their recognized importance, there have been very few field, laborato