scholarly journals Acoustic bubble dynamics in a yield-stress fluid

Soft Matter ◽  
2020 ◽  
Vol 16 (46) ◽  
pp. 10405-10418
Author(s):  
Brice Saint-Michel ◽  
Valeria Garbin

Bubbles initially trapped in a yield-stress fluid can be displaced by acoustic forces and exhibit shape oscillations at higher acoustic pressure, but irreversible motion is not observed.

Soft Matter ◽  
2019 ◽  
Vol 15 (39) ◽  
pp. 7956-7967 ◽  
Author(s):  
Yufei Wei ◽  
Michael J. Solomon ◽  
Ronald G. Larson

We study the rheological responses and shear-rate inhomogeneities and shear banding behaviors of a thixotropic fumed silica suspension in shear startup tests and flow reversal tests.


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