Convective Flows of Anomalous Thermoviscous Fluid
Конвективные потоки аномальной термовязкой жидкости
2018-07-01
SCID: 54.1/v3m4aqza
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Oberbeck-Boussinesq approximationSIMPLE algorithmanomalous thermoviscosityfinite volume methodnonmonotonic viscosity-temperature dependence
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Abstract (AI)
The specific hydrodynamic properties of flows occurring under the heat convection of fluid with anomalous thermoviscosity in a closed square cavity are studied. The mathematical model is based on the equations of the dynamics of a continuous medium in the Oberbeck-Boussinesq approximation with a nonmonotonic viscosity dependence of the temperature. The finite volume method and SIMPLE algorithm based on multiprocessor technology are used for simulation. The dependence of the anomaly parameters on the character of the convective flow of the liquid is considered. The influence of the viscous barrier on the flow structure is determined for a number of problem parameters.
Key Findings
1
Analyzed how anomaly parameters (characterizing the thermoviscous anomaly) affect the character of convective flow.
2
Determined the influence of a viscous barrier on flow structure across a range of problem parameters.
3
Implemented numerical simulations using the finite volume method and the SIMPLE algorithm on multiprocessor technology to model these flows.
4
Studied convective flows in a closed square cavity for fluids with nonmonotonic (anomalous) temperature-dependent viscosity using the Oberbeck-Boussinesq model.
Research Object
Convective flows of a fluid with anomalous thermoviscosity in a closed square cavity
Research Subject
How nonmonotonic temperature-dependent viscosity (anomalous thermoviscosity) and viscous barriers affect the structure and character of convective flow under heat convection, as determined by Oberbeck–Boussinesq-based simulations
Publication Details
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2018-07-01
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