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ISBN : 978-1-56700-478-6

Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)
2017, December 27-30 , BITS Pilani, Hyderabad, India

EFFECT OF CONJUGATE NATURAL CONVECTION FLOW IN A SQUARE ENCLOSURE WITH ALL SIDE WALL

Get access DOI: 10.1615/IHMTC-2017.2630
pages 1883-1888

Abstract

Conjugate natural convection flow in a square enclosure having thick conducting walls has been analyzed numerically. Enclosing walls are considered to have finite conductive properties. The problem has been analyzed using control volume approach and employing ghost nodes at the solid-fluid interface. Outside of the walls are kept at constant temperature. The square cavity is assumed to be filled with a Bousinessq fluid with a Prandtl number of 7.0 containing uniform volumetric sources. Rayleigh number is varied from 103 to 108. For special cases, benchmark results compare very well with the results from the open literature. Isotherms, streamlines and wall Nusselt numbers are obtained and scrutinized. It has been shown that walls having high thermal diffusivity are much better suited if the cooling of the enclosed fluid is intended.
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