Publication type: Conference other
Type of review: Peer review (abstract)
Title: Analysis of stresses and surface topology of dynamically agitated fluids
Authors: Brunner, Daniel
Clemens, Mirjam
Sager, Fabian
Boiger, Gernot Kurt
Proceedings: Multiphysics 2017
Conference details: International Conference of Multiphysics, Beijing, China, 14-15 December 2017
Issue Date: 14-Dec-2017
Publisher / Ed. Institution: International Society of Multiphysics
ISSN: 2409-1669
Language: English
Subjects: Fluid mechanics; Stress analysis; Two phase; Vibration table
Subject (DDC): 530: Physics
Abstract: Agitation of fluids in vials is routinely performed in order to test the suitability of a substance for transport. Many kinds of degradation phenomena can result from such agitation. The specific shear stresses and degradation mechanisms are in many cases not thoroughly understood yet. Studying the shear stress situation due to agitation is an essential step towards understanding degradation mechanisms and specific sensitivities. In order to do this, an OpenFOAM based model has been set-up, using the two phase volume-of-fluid approach within OpenFoam's interFoam solver as well as a frame of reference. Two validation cases have been performed. Firstly, the transient behaviour of the volume- averaged shear stresses in an orbitally shaken fluid have been compared to literature results. Secondly, the structure of the surface waves has been compared to experimental results with water. The developed model has been used to conduct a parameter study for vertical shaking conditions. Thus the shear stress distribution at different excitation frequencies and amplitudes has been investigated.
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Appears in collections:Publikationen School of Engineering

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