Initial Condition Dependence on the Onset and Growth of Sand Ripple Due to Steady Uni-Directional Viscous Flow
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概要
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An experimental study was made on the formation and evolution of sand ripples in a viscous flow between two concentric cylinders of finite depth. The velocity field was measured, which revealed that the vertical velocity profile is quite different from the linear shear flow. Particular attention is paid to elucidate the dependence of the onset and growth of sand ripples on the initial depression of the otherwise flat granular surface, and the pattern diagram of ripple emergence is obtained.
- 2013-11-15
著者
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Sano Osamu
Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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Sano Osamu
Department Mining and Mineral Engineering
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Ishii Kazuki
Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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