Numerical model for the shear rheology of two-dimensional wet foams with deformable bubbles
Kähärä, T., Tallinen, T., & Timonen, J. (2014). Numerical model for the shear rheology of two-dimensional wet foams with deformable bubbles. Physical Review E, 90(3), Article 032307. https://doi.org/10.1103/PhysRevE.90.032307
Julkaistu sarjassa
Physical Review EPäivämäärä
2014Tekijänoikeudet
© 2014 American Physical Society. Published in this repository with the kind permission of the publisher.
Shearing of two-dimensional wet foam is simulated using an introduced numerical model, and results are
compared to those of experiments. This model features realistically deformable bubbles, which distinguishes it
from previously used models for wet foam. The internal bubble dynamics and their contact interactions are also
separated in the model, making it possible to investigate the effects of the related microscale properties of the
model on the macroscale phenomena. Validity of model assumptions was proved here by agreement between
the simulated and measured Herschel-Bulkley rheology, and shear-induced relaxation times. This model also
suggests a relationship between the shear stress and normal stress as well as between the average degree of bubble
deformation and applied shear stress. It can also be used to analyze suspensions of bubbles and solid particles,
an extension not considered in this work.
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
1539-3755Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/23888920
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