- Tytuł:
- Natural and mixed convection of a nanofluid in porous cavities: critical analysis using buongiorno’s model
- Autorzy:
-
Zahmatkesh, Iman
Habibi, Mohammad Reza - Powiązania:
- https://bibliotekanauki.pl/articles/279435.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
natural convection
mixed convection
nanofluid
porous media
Buongiorno’s model - Opis:
- In this paper, Buongiorno’s mathematical model is adopted to simulate both natural convection and mixed convection of a nanofluid in square porous cavities. The model takes into account the Brownian diffusion and thermophoresis effects. Both constant and variable temperatures are prescribed at the side walls while the remaining walls are maintained adiabatic. Moreover, all boundaries are assumed to be impermeable to the base fluid and the nanoparticles. The governing equations are transformed to a form of dimensionless equations and then solved numerically using the finite-volume method. Thereafter, effects of the Brownian diffusion parameter, the thermophoresis number, and the buoyancy ratio on the flow strength and the average Nusselt number as well as distributions of isocontours of the stream function, temperature, and nanoparticles fraction are presented and discussed.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2019, 57, 1; 221-233
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł