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Coefficient of restitution for wet particles

URN to cite this document: urn:nbn:de:bvb:703-epub-3947-2

Title data

Gollwitzer, Frank ; Rehberg, Ingo ; Krülle, Christof A. ; Huang, Kai:
Coefficient of restitution for wet particles.
In: Physical Review E. Vol. 86 (2012) . - Art.Nr. 011303.
ISSN 1550-2376
DOI der Verlagsversion: https://doi.org/10.1103/PhysRevE.86.011303

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Name: PhysRevE.86.011303.pdf
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Available under License German copyright law. This contribution is freely accessible with the consent of the copyright holder on the basis of an (DFG-funded) alliance or national license. The document may be used free of charge for personal use. In addition, the reproduction, editing, distribution and any kind of exploitation require the written consent of the respective rights holder.
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Project information

Project financing: DFG Forschergruppe 608

Abstract

The influence of a liquid film on the coefficient of restitution (COR) is investigated experimentally by tracing freely falling particles bouncing on a wet surface. The dependence of the COR on the impact velocity and various properties of the particle and liquid is presented and discussed in terms of dimensionless numbers that characterize the interplay between inertial, viscous, and surface forces. In the Reynolds number regime where lubrication theory does not apply, the ratio of the film thickness to the particle size is found to be a crucial parameter determining the COR.

Further data

Item Type: Article in a journal
Keywords: Granular systems; Collisions; Particle-laden flows.
DDC Subjects: 500 Science > 530 Physics
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-3947-2
Date Deposited: 24 Jan 2019 10:33
Last Modified: 30 Jun 2020 10:44
URI: https://epub.uni-bayreuth.de/id/eprint/3947
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