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Magnetic field effect on nanofluid water-cu natural convection in an inclined T shape cavity.
- Source :
- Modares Mechanical Engineering; Mar2015, Vol. 14 Issue 12, p179-189, 11p
- Publication Year :
- 2015
-
Abstract
- In this paper, the result of a numerical study on the natural convection in an inclined T shap cavity filled with Water-Cu nanofluid with the presence of a constant magnetic field was investigated. A heat source embedded on the bottom wall of enclosure, the upper wall is cold and the other walls are adiabatic. Discretization of the governing equations are achieved through a finite volume method and solved with SIMPLE algorithm. The Hartmann number has been varied from 0 to 80 and the cavity has been twisted under the angles between 0 to 90 degrees. The findings of study show that the effect magnetic field on the average Nusselt number is higher in high Reyleigh number. In Ra=10<superscript>5</superscript>, the increase in nanofluid, to the Hartman number 20, contributes to decrease of the average number and in the Hartman number 40 and more, causes the average Nusselt number to increase. In Ra=10<superscript>6</superscript>, the increase in nanofluid, to the Hartman number 20, contributes to increase of the average number and in the Hartman number 40 and more, causes the average Nusselt number to decrease. The results also indicate that, the maximum heat transfer, in Ra=10<superscript>5</superscript> and Ra=10<superscript>6</superscript> accurse at 67.5° angle. The minimum heat transfer, in Ra=10<superscript>5</superscript> and Ra=10<superscript>6</superscript> accurse at 0° and 22.5° angle respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- MAGNETIC fields
NANOFLUIDS
ALGORITHMS
RAYLEIGH number
HEAT transfer
Subjects
Details
- Language :
- Persian
- ISSN :
- 10275940
- Volume :
- 14
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Modares Mechanical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 99204841