N2 - This study is devoted to the instantaneous acoustic heating of a shear-thinning fluid. Apparent viscosity of a shear-thinning fluid depends on the shear rate. That feature distinguishes it from a viscous Newtonian fluid. The special linear combination of conservation equations in the differential form makes it possible to derive dynamic equations governing both the sound and non-wave entropy mode induced in the field of sound. These equations are valid in a weakly nonlinear flow of a shear-thinning fluid over an unbounded volume. They both are instantaneous, and do not require a periodic sound. An example of a sound waveform with a piecewise constant shear rate is considered as a source of acoustic heating.
L1 - http://journals.pan.pl/Content/104434/PDF/10_paper.pdf
L2 - http://journals.pan.pl/Content/104434
PY - 2011
IS - No 3
EP - 642
DO - 10.2478/v10168-011-0044-6
KW - acoustic heating
KW - non-Newtonian liquids
KW - shear-thinning fluid
A1 - Perelomova, Anna
PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics
VL - vol. 36
DA - 2011
T1 - Acoustic Heating Produced in the Thermoviscous Flow of a Shear-Thinning Fluid
SP - 629
UR - http://journals.pan.pl/dlibra/publication/edition/104434
T2 - Archives of Acoustics