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Numerical investigation of laminar fluid flow in an oscillating sphere

Stein, Anika and Rütten, Markus and Wünsch, Olaf (2009) Numerical investigation of laminar fluid flow in an oscillating sphere. PAMM, 9 (1), pp. 487-488. WILEY-VCH Verlag GmbH & Co. KGaA. doi: 10.1002/pamm.200910216.

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The laminar flow of a fluid in an oscillating sphere is a well known problem investigated in literature for Newtonian and non-Newtonian fluids. For a fully filled sphere the fluid oscillates in azimuthal direction with the frequency of excitation. In the meridian plane exists a stationary drift caused by the inertia of the fluid. In the case of viscoelastic fluids the inertia competes against the forces of normal stress differences. For certain parameter analyticall results based on calculation of perturbation show not only two vortices in form of a torus, two additional vortices are developed with opposite direction of rotation. But also in the case of the fully filled hemisphere and Newtonian fluids additional vortices are observed experimentally.

Item URL in elib:https://elib.dlr.de/77531/
Document Type:Article
Title:Numerical investigation of laminar fluid flow in an oscillating sphere
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Stein, AnikaUniversity of Kassel, Institute of MechanicsUNSPECIFIED
Wünsch, OlafUniversity of Kassel, Institute of MechanicsUNSPECIFIED
Journal or Publication Title:PAMM
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1002/pamm.200910216
Page Range:pp. 487-488
Publisher:WILEY-VCH Verlag GmbH & Co. KGaA
Keywords:Oscillating sphere, Non-Newtonian Fluid
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Danzer, Kristina
Deposited On:19 Nov 2012 16:39
Last Modified:27 Mar 2015 15:17

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