Laminar flow of viscoelastic fluids in rectangular ducts with heat transfer: A finite element analysis

Seppo Syrjälä

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Abstract

A numerical study on the laminar flow and heat transfer behavior of viscoelastic fluids in rectangular ducts is conducted using the finite element approach.
A Criminale-Ericksen-Fibley relation is applied to describe the viscoelastic character of the fluid, and a hydrodynamically and thermally fully developed flow with the H1 thermal boundary condition is considered. The finite element procedure employed yields essentially mesh-independent predictions with a fairly moderate computational effort.
Computed results are presented and discussed in terms of the secondary flow field, the temperature field, the friction factor and the Nusselt number.
In particular it is shown that the presence of a secondary flow markedly alters the temperature field and results in a substantial heat transfer enhancement with all duct aspect ratios considered.
Original languageEnglish
Pages (from-to)191-204
JournalInternational Communications in Heat and Mass Transfer
Volume25
Issue number2
DOIs
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

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