HEAT TRANSFER AND HYDRAULIC RESISTANCE IN CHANNELS WITH SPHERICAL PROTRUSIONS

Igor Popov
Kazan National Research Technical University named after Tupolev A.N. - KAI 420111, K.Marks str. 10, Kazan, Russian Federation

Alexey V. Scshelchkov
Kazan National Research Technical University named after Tupolev A.N. - KAI 420111, K.Marks str. 10, Kazan, Russian Federation

Marsel Z. Yarkaev
Kazan National Research Technical University named after Tupolev A.N. - KAI 420111, K.Marks str. 10, Kazan, Russian Federation

DOI: 10.1615/TFESC1.hte.012753
pages 1341-1345

键词 Heat transfer, Enhancement, Hydroresistance

摘要

In this work is presented an analytical review of experimental studies of hydraulic resistance and heat transfer in channels with intensifiers in the form of systems of spherical protrusions in a wide range of operating and design parameters. A common approach to the generalization of the experimental data of various authors is elaborated taking into account differences in the geometry of the heat transfer surfaces. Cross functional generalized characteristics for coefficients of hydraulic resistance and heat transfer in channels with spherical protrusions are obtained.