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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

BUOYANCY DRIVEN FLOW WITHIN UNIFORMLY HEATED ECCENTRIC ANNULUS

Get access (open in a dialog) DOI: 10.1615/IHTC16.cov.021477
pages 2995-3003

Résumé

The buoyancy driven flow within uniformly heated eccentric annulus has been numerically predicted. The annulus between two eccentric cylinders is placed horizontally and its inner wall is heated at uniform heat flux, while its outer wall is isothermally cooled. The study considers the induced laminar natural convection at modified Rayleigh number of 104 while other controlling parameters are the outer to inner cylinder radius ratio, the eccentricity, and the angle of inclination of annulus symmetry line (ASL) with horizontal axis. The results for local and average temperature of the inner wall are obtained and discussed together with the details of both flow and thermal fields. The study has predicted the global flow circulation around the inner cylinder. The study has also shown that as the angle of inclination of ASL increases from 0° to 90°, the steady average temperature of the inner wall decreases for negative eccentricities, while it increases for positive eccentricities.