Microscopic origin of granular fluidity: An experimental investigation.

Poon, Rebecca N; Thomas, Amalia L; Vriend, Nathalie M

Poon, Rebecca N; Thomas, Amalia L; Vriend, Nathalie M.

Afiliación

Poon RN; BP Institute, University of Cambridge, Madingley Rise, Madingley Road, Cambridge CB3 0EZ, United Kingdom.
Thomas AL; Living Systems Institute, University of Exeter, Stocker Road, Exeter, EX4 4QD, United Kingdom.
Vriend NM; BP Institute, University of Cambridge, Madingley Rise, Madingley Road, Cambridge CB3 0EZ, United Kingdom.

Phys Rev E ; 108(6-1): 064902, 2023 Dec.

Article en En | MEDLINE | ID: mdl-38243449

ABSTRACT

ABSTRACT

Granular fluidity has been central to the development of nonlocal constitutive equations, which are necessary for characterizing nonlocal effects observed in experimental granular flow data. However, validation of these equations has been largely computational due to challenges in laboratory experiments. Specifically, the origin of the fluidity on a microscopic, single-particle level is still unproven. In this work, we present an experimental validation of a microscopic definition of granular fluidity, and show the importance of basal boundary conditions to the validity of the theory.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev E Año: 2023 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos

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