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The granular jump

delete2007-01-23
delete42
PRE
AI
J
J. F. Boudet *
Y
Yacine Amarouchène
B
B. Bonnier
H
H. Kellay
DOI:10.1017/S002211200600365Xdelete
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摘要

摘要

En 中文
When a fluid jet hits a solid surface, a hydraulic jumps occurs. This jump sharply delimits a thin film of liquid from a thicker film. We show here that a granular jet impinging on a solid surface also gives rise to several features reminiscent of the hydraulic Jump and we refer to this situation as the granular jump. We describe, in detail, this phenomenon and show that if many of its features can be understood in analogy with the hydraulic jump, others are directly related to the granular nature of the medium and, in particular, the small-scale dynamics of the jump.
Keyword:
SAND
INSTABILITIES
DYNAMICS
MOTION
MASS

期刊

Journal of Fluid Mechanics 封面图
Journal of Fluid Mechanics
IF:
3.9
论文数:
2.0W
被引数:
9.4W

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