Encyclopedia

Rayleigh number 3

Rayleigh number 3

[′rā·lē ¦nəm·bər ′thrē]
(thermodynamics)
A dimensionless number used in the study of combined free and forced convection in vertical tubes, equal to Rayleigh number 2 times the Nusselt number times the tube diameter divided by its entry length. Symbolized Ra3.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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