Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Natural convection flow of a nanofluid in an enclosure under an inclined uniform magnetic field
Date
2016-01-01
Author
Tezer, Münevver
Bozkaya, Canan
TÜRK, ÖNDER
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
5
views
0
downloads
Cite This
In this study, the natural convection in a square enclosure filled with water-based aluminium oxide (Al2O3) under the influence of an externally applied inclined magnetic field is considered numerically. The flow is steady, two-dimensional and laminar; the nanoparticles and water are assumed to be in thermal equilibrium. The governing equations are solved in terms of stream function-vorticity-temperature using both the dual reciprocity boundary element method and the finite element method to see the influence of characteristic flow parameters, namely: solid volume fraction (phi), inclination angle (gamma), Rayleigh (Ra) and Hartmann (Ha) numbers. Numerical simulations are performed for 0 <= phi <= 0.2, gamma = 0, pi/4, pi/3, pi/2, and the values of Rayleigh and Hartmann numbers up to 107 and 300, respectively. The results show that the buoyancy-driven circulating flows undergo inversion of direction as Ra and Ha increase, and magnitudes of streamlines and vorticity contours increase as Ra increases, but decrease as Ha increases. The isotherms have a horizontal profile for high Ra values as a result of convective dominance over conduction. As Ha increases, effect of the convection on flow is reduced, thus the isotherms tend to have vertical profiles.
Subject Keywords
DRBEM
,
FEM
,
Natural convection
,
Nanofluid
,
Magnetic field
URI
https://hdl.handle.net/11511/45138
Journal
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS
DOI
https://doi.org/10.1080/17797179.2016.1181029
Collections
Department of Mathematics, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Tezer, C. Bozkaya, and Ö. TÜRK, “Natural convection flow of a nanofluid in an enclosure under an inclined uniform magnetic field,”
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS
, vol. 25, pp. 2–23, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/45138.