MAGNETOHYDRODYNAMIC MIXED CONVECTION IN A LID-DRIVEN RECTANGULAR ENCLOSURE PARTIALLY HEATED AT THE BOTTOM AND COOLED AT THE TOP

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Elif Büyük ÖĞÜT

Abstract

In the present study, numerical simulation of magnetohydrodynamic (MHD) mixed convection heat transfer and fluid flow has been analyzed in a lid-driven enclosure provided with a constant flux heater. Governing equations were solved via differential quadrature (DQ) method. Moving wall of the enclosure has constant temperature and speed. The calculations were performed for different Richardson number ranging   from 0.1 to 10, constant heat flux heater length from 0.2 to 0.8, location of heater center from 0.1 to 0.9, Hartmann number from 0 to 100 and aspect ratio from 0.5 to 2. Two different magnetic field directions were tested as vertical and horizontal. It was  found  that results of DQ method show good agreement with the results of literature. The magnetic field was more effective when it applied horizontally than that of vertical way. In both direction of magnetic field, it reduced the flow strength and heat transfer. Thus, it can be used as an important control parameter for heat and fluid flow.

Article Details

How to Cite
ÖĞÜT, Elif Büyük. MAGNETOHYDRODYNAMIC MIXED CONVECTION IN A LID-DRIVEN RECTANGULAR ENCLOSURE PARTIALLY HEATED AT THE BOTTOM AND COOLED AT THE TOP. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2100>. Date accessed: 14 dec. 2017. doi: https://doi.org/10.2298/TSCI141121053O.
Section
Articles
Received 2017-03-02
Accepted 2017-03-13
Published 2017-03-13

References

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