Practical correlations for heat and mass transfer

In addition to the theoretieal treatments just described, many workers have measured heat and mass transfer by foreed eonvection from bodies such as plates, spheres and cylinders. The bulk of the literature in the field has been reviewed recently [Shenoy and Mashelkar, 1982 Irvine, Jr. and Kami, 1987 Nakayama, 1988 Chhabra, 1993a, b, 1999 Ghosh et al, 1994], but only a selection of rehable correlations for spheres and eylinders is presented in this section which is based primarily on the reviews of Irvine and Kami [1987] and of Ghosh et al. [1994]. 

For particle-liquid heat and mass transfer in non-Newtonian polymer solutions flowing over spheres fixed in tubes (0.25 d/D, 0.5), Ghosh et al. [1992, 1994] invoked the usual heat and mass transfer analogy, that is, Sh = Nu and 

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