Granular shear flow in varying gravitational environments
نویسندگان
چکیده
منابع مشابه
Granular shear flow in varying gravitational environments
Despite their very low surface gravities, asteroids exhibit a number of different geological processes involving granular matter. Understanding the response of this granular material subject to external forces in microgravity conditions is vital to the design of a successful asteroid sub-surface sampling mechanism, and in the interpretation of the fascinating geology on an asteroid. We have des...
متن کاملThe Open University ’ s repository of research publications and other research outputs Granular shear flow in varying gravitational environ
Despite their very low surface gravities, asteroids exhibit a number of different geological processes involving granular matter. Understanding the response of this granular material subject to external forces in microgravity conditions is vital to the design of a successful asteroid sub-surface sampling mechanism, and in the interpretation of the fascinating geology on an asteroid. We have des...
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The evolution of granular shear flow is investigated as a function of height in a split-bottom Couette cell. Using particle tracking, magnetic-resonance imaging, and large-scale simulations, we find a transition in the nature of the shear as a characteristic height H* is exceeded. Below H* there is a central stationary core; above H* we observe the onset of additional axial shear associated wit...
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ژورنال
عنوان ژورنال: Granular Matter
سال: 2013
ISSN: 1434-5021,1434-7636
DOI: 10.1007/s10035-013-0395-y