Entropy generation due to laminar natural convection over a heated rotating cylinder

Citation
Bak. Abu-hijleh et Wn. Heilen, Entropy generation due to laminar natural convection over a heated rotating cylinder, INT J HEAT, 42(22), 1999, pp. 4225-4233
Citations number
18
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN journal
00179310 → ACNP
Volume
42
Issue
22
Year of publication
1999
Pages
4225 - 4233
Database
ISI
SICI code
0017-9310(199911)42:22<4225:EGDTLN>2.0.ZU;2-B
Abstract
Entropy generation due to laminar mixed convection fi-om anisothermal rotat ing cylinder was calculated numerically. The study was conducted for three cylinder radii and covered wide ranges of Reynolds number and buoyancy para meter. Entropy generation increased as the Reynolds number and buoyancy par ameter increased. Entropy generation decreased as the cylinder radius incre ased. For the same combination of Reynolds number and buoyancy parameter, e ntropy generation was mainly due to thermal effects at small cylinder radii and due to viscous effects at large cylinder radii. (C) 1999 Elsevier Scie nce Ltd. All rights reserved.