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Natural convection in an enclosure with localized heating from below

Book ·
OSTI ID:428132
 [1]
  1. Lafayette Coll., Easton, PA (United States). Dept. of Mechanical Engineering

Natural convection heat transfer in a cylindrical enclosure, heated partially from below by a disk shaped heating surface and cooled from the top and the side, was investigated experimentally and numerically. Heat transfer measurements are presented for Rayleigh numbers ranging from 10{sup 8} to 2 {times} 10{sup 10} with water as the test fluid. The test results were correlated by an equation of the form Nu{sub D} = 0.16 Ra{sub D}{sup 1/3} for a Prandtl number of 2 and aspect ratio of 1.01. The flow field was numerically analyzed using FLUENT code. The {kappa}-{epsilon} model for predicting the turbulent flows with buoyancy was used.

OSTI ID:
428132
Report Number(s):
CONF-960815--; ISBN 0-7918-1506-4
Country of Publication:
United States
Language:
English

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