http://www.cnr.it/ontology/cnr/individuo/prodotto/ID42672
Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results (Articolo in rivista)
- Type
- Label
- Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
D'Avino G., Hulsen M. A., Snijkers F., Vermant J., Greco F., Maffettone P. L (2008)
Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results
in Journal of rheology (N.Y.N.Y.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- D'Avino G., Hulsen M. A., Snijkers F., Vermant J., Greco F., Maffettone P. L (literal)
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- Rivista
- Note
- ISI Web of Science (WOS) (literal)
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- Dipartimento di Ingegneria Chimica, Università degli Studi di Napoli
Federico II, Piazzale Tecchio 80, 80125 Napoli, Italia
Department of Mechanical Engineering, Eindhoven University of Technology,
PO Box 513, 5600 MB Eindhoven, The Netherlands
Department of Chemical Engineering, K.U. Leuven, W. de Croylaan,
B-3001 Leuven, Belgium
Istituto di Ricerche sulla Combustione, IRC, CNR, Piazzale Tecchio 80,
80125 Napoli, Italia (literal)
- Titolo
- Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results (literal)
- Abstract
- In inertialess suspensions of rigid particles, the rotational motion of each particle is governed by
the so-called freely rotating condition, whereby the total torque acting on the particle must be zero.
In this work, we study the effect of viscoelasticity of the suspending liquid on the rotation period
of a sphere by means of three-dimensional finite element simulations, for conditions corresponding
to a macroscopic shear flow. The simulation results capture the slowing down of the rotation,
relative to the Newtonian case, which was recently observed in experiments. It is shown that such
a phenomenon depends on the specific constitutive equation adopted for the viscoelastic liquid.
Analysis of transients shows a clear correlation between rotation rate and the development of first
normal stress difference. © 2008 The Society of Rheology. (literal)
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