Sensitivity to solid volume fraction of gravitational instability in a granular medium
2010
Bonnet, Fabrice | Richard, T. | Philippe, P.
We report experimental results on incipient dynamics of gravitational destabilization in an immersed granular medium. Two protocols have been used to reach instability: a progressive loading and a dam-break situation. The instability triggering, analysed by high-speed imaging and CIV post-processing, reveals distinct dynamical behaviours depending on the initial packing fraction of the medium. Two destabilisation modes have been observed: a surface avalanche and a deeper phenomenon that we called circular collapse.
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书目信息
其它主题
Effondrement; Milieu granulaire; Ecoulement granulaire; [sde] environmental sciences
语言
英语
类型
Art
来源
Springer Verlag
2021-03-15
AGRIS AP