Numerical simulations of an incompressible piezoviscous fluid flowing in a plane slider bearing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10376631" target="_blank" >RIV/00216208:11320/18:10376631 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s11012-017-0731-0" target="_blank" >https://doi.org/10.1007/s11012-017-0731-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11012-017-0731-0" target="_blank" >10.1007/s11012-017-0731-0</a>
Alternative languages
Result language
angličtina
Original language name
Numerical simulations of an incompressible piezoviscous fluid flowing in a plane slider bearing
Original language description
We provide numerical simulations of an incompressible pressure-thickening and shear-thinning lubricant flowing in a plane slider bearing. We study the influence of several parameters, namely the ratio of the characteristic lengths (with representing the Reynolds lubrication approximation); the coefficient of the exponential pressure-viscosity relation ; the parameter related to the Carreau-Yasuda shear-thinning model and the modified Reynolds number . The finite element approximations to the steady isothermal flows are computed without resorting to the lubrication approximation. We obtain the numerical solutions as long as the variation of the viscous stress with the pressure is limited, say . We show conclusively that the existing practice of avoiding the numerical difficulties by cutting the viscosity off for large pressures leads to results that depend sorely on the artificial cut-off parameter. We observe that the piezoviscous rheology generates pressure differences across the fluid film.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Meccanica
ISSN
0025-6455
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
1-2
Country of publishing house
IT - ITALY
Number of pages
20
Pages from-to
209-228
UT code for WoS article
000424460100014
EID of the result in the Scopus database
2-s2.0-85028975424