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1. Numericle simulation of the formation of star dunes with DNS method | |||
Zhang Ruyan ,Luo Chunmei | |||
Earth Science 29 October 2010 | |||
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Abstract:In this paper, the star dunes with five arms are simulated numerically in order to make clear the mechanism of the formation. The numerical method employed in this study can be divided into three parts: (1) Calculation of the air flow above the sand dunes; (2) Estimation of the sand transfer caused by the flow through the friction; (3) Determination of the shape of the sand ground. Since the computational area has been changed due to the last step, these procedures are repeated until typical shapes of the sand dunes are formed. When the winds blow from five directions, the sand dune extends at five directions and becomes the shape of a star with five arms. | |||
TO cite this article:Zhang Ruyan ,Luo Chunmei. Numericle simulation of the formation of star dunes with DNS method[OL].[29 October 2010] http://en.paper.edu.cn/en_releasepaper/content/4389812 |
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