Acoustic Heating Produced in the Thermoviscous Flow of a Shear-Thinning Fluid
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 combi- nation of conservation equations in the differenti...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/169 |
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| Summary: | 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 combi-
nation 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. |
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| ISSN: | 0137-5075 2300-262X |