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Simulations With a Thermodynamically Consistent Model for Convective Transport in Nanofluids
Title data
Bänsch, Eberhard ; Faghih-Naini, Sara:
Simulations With a Thermodynamically Consistent Model for Convective Transport in Nanofluids.
In: Journal of Heat Transfer.
Vol. 143
(2021)
Issue 12
.
- 122501.
ISSN 1528-8943
DOI: https://doi.org/10.1115/1.4051601
Abstract in another language
A nonhomogeneous model is used to simulate convective transport in nanofluids. The model is a thermodynamically consistent version of the celebrated Buongiorno model. We study two situations in detail: flow through a pipe that is heated periodically in time at one lateral wall and a lid-driven cavity with a triangular heat source placed within. Both studies reveal the mechanisms of enhanced heat transfer by nanofluids through thermophoresis: the temperature gradient at the wall leads to a reduced concentration of nanoparticles. This reduces the concentration-dependent viscosity of the suspension close to the boundary, which in turn leads to a stronger convective transport.
Further data
Item Type: |
Article in a journal
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Refereed: |
Yes |
Institutions of the University: |
Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Scientific Computing Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Professor Numerics of Partial Differential Equations Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Professor Numerics of Partial Differential Equations > Professor Numerics of Partial Differential Equations - Univ.-Prof. Dr. Vadym Aizinger Research Institutions Research Institutions > Central research institutes Research Institutions > Central research institutes > Bayreuth Research Center for Modeling and Simulation - MODUS Research Institutions > Central research institutes > Forschungszentrum für Wissenschaftliches Rechnen an der Universität Bayreuth - HPC-Forschungszentrum |
Result of work at the UBT: |
No |
DDC Subjects: |
000 Computer Science, information, general works 000 Computer Science, information, general works > 004 Computer science 500 Science 500 Science > 500 Natural sciences 500 Science > 510 Mathematics 500 Science > 550 Earth sciences, geology 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 600 Technology |
Date Deposited: |
19 Nov 2021 11:48 |
Last Modified: |
27 Sep 2023 11:21 |
URI: |
https://eref.uni-bayreuth.de/id/eprint/67931 |
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