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

Seppo Syrjälä

Research output: Contribution to journalArticleScientificpeer-review

28 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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secondary flow
Secondary flow
laminar flow
Laminar flow
ducts
Ducts
Temperature distribution
temperature distribution
heat transfer
Heat transfer
Finite element method
friction factor
Fluids
fluids
Nusselt number
aspect ratio
Aspect ratio
mesh
Flow fields
flow distribution

Cite this

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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.",
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Laminar flow of viscoelastic fluids in rectangular ducts with heat transfer : A finite element analysis. / Syrjälä, Seppo.

In: International Communications in Heat and Mass Transfer, Vol. 25, No. 2, 1998, p. 191-204.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Laminar flow of viscoelastic fluids in rectangular ducts with heat transfer

T2 - A finite element analysis

AU - Syrjälä, Seppo

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

U2 - 10.1016/S0735-1933(98)00006-2

DO - 10.1016/S0735-1933(98)00006-2

M3 - Article

VL - 25

SP - 191

EP - 204

JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

SN - 0735-1933

IS - 2

ER -