Gukhman number

Gukhman number

[′gu̇k·mən ‚nəm·bər]
(thermodynamics)
A dimensionless number used in studying convective heat transfer in evaporation, equal to (t0-tm )/ T0, where t0 is the temperature of a hot gas stream, tm is the temperature of a moist surface over which it is flowing, and T0 is the absolute temperature of the gas stream. Symbolized Gu ; NGu .
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.