Sg. Etemad et F. Bakhtiari, General equations for fully developed fluid flow and heat transfer characteristics in complex geometries, INT COMM HE, 26(2), 1999, pp. 229-238
Citations number
18
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
This paper presents general equations for laminar fully developed friction
factor, incremental pressure drop and Nusselt number of Newtonian fluid flo
wing in ducts of arbitrary cross sections. These general equations are obta
ined using some definitions, e.g. equivalent diameter, number of imaginary
circles inside specific geometry and the diameter of surrounded circle. The
comparison of the results obtained from these equations with the theoretic
ally calculated values available in the literature for various ducts indica
tes the accuracy of this investigation. (C) 1999 Elsevier Science Ltd.