Computational analysis of heat transfer in turbulent flow past a horizontal surface with two-dimensional ribs

C.K. Lee, S.A. Abdel-Moneim

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Heat transfer and flow behaviours past a horizontal surface with two-dimensional transverse ribs were numerically investigated using a CFD model. The present model was adopted for turbulent flow of air past a number of rib arrays with different rib pitch to height ratios heated with a uniform heat flux. The temperature profiles and the local heat transfer coefficients as well as the flow velocity and turbulence characteristics were predicted. The results showed that the presence of the transverse ribs yields a significant enhancement of the heat transfer compared with that for a flat plate and the predicted heat transfer coefficients showed good agreement with previous experimental results. Also, peaks in local heat transfer coefficients were predicted within the interrib regions and were found to coincide with the points of reattachment of the separated flows.
LanguageEnglish
Pages161-170
Number of pages9
JournalInternational Communications in Heat and Mass Transfer
Volume28
Issue number2
DOIs
Publication statusPublished - Feb 2001

Fingerprint

heat transfer coefficients
turbulent flow
Heat transfer coefficients
Turbulent flow
heat transfer
Heat transfer
separated flow
flat plates
charge flow devices
heat transmission
Flow velocity
temperature profiles
attachment
Heat flux
heat flux
Computational fluid dynamics
Turbulence
flow velocity
turbulence
augmentation

Keywords

  • mounted 2-dimensional rib
  • one principal wall
  • rectangular duct
  • channel
  • friction

Cite this

@article{672c532172f94d22a3b0a0f8002636ad,
title = "Computational analysis of heat transfer in turbulent flow past a horizontal surface with two-dimensional ribs",
abstract = "Heat transfer and flow behaviours past a horizontal surface with two-dimensional transverse ribs were numerically investigated using a CFD model. The present model was adopted for turbulent flow of air past a number of rib arrays with different rib pitch to height ratios heated with a uniform heat flux. The temperature profiles and the local heat transfer coefficients as well as the flow velocity and turbulence characteristics were predicted. The results showed that the presence of the transverse ribs yields a significant enhancement of the heat transfer compared with that for a flat plate and the predicted heat transfer coefficients showed good agreement with previous experimental results. Also, peaks in local heat transfer coefficients were predicted within the interrib regions and were found to coincide with the points of reattachment of the separated flows.",
keywords = "mounted 2-dimensional rib, one principal wall, rectangular duct, channel, friction",
author = "C.K. Lee and S.A. Abdel-Moneim",
year = "2001",
month = "2",
doi = "10.1016/S0735-1933(01)00223-8",
language = "English",
volume = "28",
pages = "161--170",
journal = "International Communications in Heat and Mass Transfer",
issn = "0735-1933",
number = "2",

}

Computational analysis of heat transfer in turbulent flow past a horizontal surface with two-dimensional ribs. / Lee, C.K.; Abdel-Moneim, S.A.

In: International Communications in Heat and Mass Transfer, Vol. 28, No. 2, 02.2001, p. 161-170.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Computational analysis of heat transfer in turbulent flow past a horizontal surface with two-dimensional ribs

AU - Lee, C.K.

AU - Abdel-Moneim, S.A.

PY - 2001/2

Y1 - 2001/2

N2 - Heat transfer and flow behaviours past a horizontal surface with two-dimensional transverse ribs were numerically investigated using a CFD model. The present model was adopted for turbulent flow of air past a number of rib arrays with different rib pitch to height ratios heated with a uniform heat flux. The temperature profiles and the local heat transfer coefficients as well as the flow velocity and turbulence characteristics were predicted. The results showed that the presence of the transverse ribs yields a significant enhancement of the heat transfer compared with that for a flat plate and the predicted heat transfer coefficients showed good agreement with previous experimental results. Also, peaks in local heat transfer coefficients were predicted within the interrib regions and were found to coincide with the points of reattachment of the separated flows.

AB - Heat transfer and flow behaviours past a horizontal surface with two-dimensional transverse ribs were numerically investigated using a CFD model. The present model was adopted for turbulent flow of air past a number of rib arrays with different rib pitch to height ratios heated with a uniform heat flux. The temperature profiles and the local heat transfer coefficients as well as the flow velocity and turbulence characteristics were predicted. The results showed that the presence of the transverse ribs yields a significant enhancement of the heat transfer compared with that for a flat plate and the predicted heat transfer coefficients showed good agreement with previous experimental results. Also, peaks in local heat transfer coefficients were predicted within the interrib regions and were found to coincide with the points of reattachment of the separated flows.

KW - mounted 2-dimensional rib

KW - one principal wall

KW - rectangular duct

KW - channel

KW - friction

UR - http://dx.doi.org/10.1016/S0735-1933(01)00223-8

U2 - 10.1016/S0735-1933(01)00223-8

DO - 10.1016/S0735-1933(01)00223-8

M3 - Article

VL - 28

SP - 161

EP - 170

JO - International Communications in Heat and Mass Transfer

T2 - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

SN - 0735-1933

IS - 2

ER -