Universität zu Köln

Kranz, W. Till, Frahsa, Fabian, Zippelius, Annette, Fuchs, Matthias ORCID: 0000-0002-9757-6924 and Sperl, Matthias (2018). Rheology of Inelastic Hard Spheres at Finite Density and Shear Rate. Phys. Rev. Lett., 121 (14). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

Considering a granular fluid of inelastic smooth hard spheres, we discuss the conditions delineating the rheological regimes comprising Newtonian, Bagnoldian, shear thinning, and shear thickening behavior. Developing a kinetic theory, valid at finite shear rates and densities around the glass transition density, we predict the viscosity and Bagnold coefficient at practically relevant values of the control parameters. The determination of full flow curves relating the shear stress sigma to the shear rate gamma and predictions of the yield stress complete our discussion of granular rheology derived from first principles.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kranz, W. Till UNSPECIFIED UNSPECIFIED UNSPECIFIED Frahsa, Fabian UNSPECIFIED UNSPECIFIED UNSPECIFIED Zippelius, Annette UNSPECIFIED UNSPECIFIED UNSPECIFIED Fuchs, Matthias UNSPECIFIED orcid.org/0000-0002-9757-6924 UNSPECIFIED Sperl, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-169665
DOI:	10.1103/PhysRevLett.121.148002
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	121
Number:	14
Date:	2018
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MODE-COUPLING THEORY; TRANSPORT-COEFFICIENTS; STRESS TENSOR; GRANULAR FLOW; PARTICLES; SUSPENSIONS; EQUATIONS; DYNAMICS; SMOOTH Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16966