Numerical predictions of mixed convection and flow separation in a vertical duct with arbitrary cross section

Chin-Hsiang Cheng, Shuen Yi Huang, Win Aung

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Recent studies on an efficient numerical approach for predicting mixed convection heat transfer and buoyancy-induced flow separations in the vertical rectangular ducts have been extended for the duct with complex geometry, testing it in several case studies. In this work, the three-dimensional parabolic model is modified by incorporating the curvilinear-coordinate finite volume method with the parabolic model. The validity of the approach has been demonstrated for several test cases, and the relative performance of the approach is also evaluated by comparing the numerical predictions with the full elliptic model solutions. The approach has been used to seek, in one case, detailed information on heat transfer and reversed flow behavior for the flow within a vertical parabolic duct. Results indicate that the three-dimensional parabolic model can be implemented and applied to predict mixed convective flows in ducts with arbitrary cross-sectional shapes, leading to satisfactory accuracy.

Original languageEnglish
Pages (from-to)491-514
Number of pages24
JournalNumerical Heat Transfer; Part A: Applications
Volume41
Issue number5
DOIs
Publication statusPublished - 2002 Jun 5

Fingerprint

Flow Separation
Mixed Convection
Mixed convection
flow separation
Flow separation
ducts
Ducts
Cross section
convection
Vertical
Prediction
cross sections
Arbitrary
predictions
Heat Transfer
heat transfer
reversed flow
Heat transfer
Curvilinear Coordinates
Three-dimensional

All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Condensed Matter Physics

Cite this

@article{e394819d2e4e42958e595f5d0b41db60,
title = "Numerical predictions of mixed convection and flow separation in a vertical duct with arbitrary cross section",
abstract = "Recent studies on an efficient numerical approach for predicting mixed convection heat transfer and buoyancy-induced flow separations in the vertical rectangular ducts have been extended for the duct with complex geometry, testing it in several case studies. In this work, the three-dimensional parabolic model is modified by incorporating the curvilinear-coordinate finite volume method with the parabolic model. The validity of the approach has been demonstrated for several test cases, and the relative performance of the approach is also evaluated by comparing the numerical predictions with the full elliptic model solutions. The approach has been used to seek, in one case, detailed information on heat transfer and reversed flow behavior for the flow within a vertical parabolic duct. Results indicate that the three-dimensional parabolic model can be implemented and applied to predict mixed convective flows in ducts with arbitrary cross-sectional shapes, leading to satisfactory accuracy.",
author = "Chin-Hsiang Cheng and Huang, {Shuen Yi} and Win Aung",
year = "2002",
month = "6",
day = "5",
doi = "10.1080/104077802753570338",
language = "English",
volume = "41",
pages = "491--514",
journal = "Numerical Heat Transfer; Part A: Applications",
issn = "1040-7782",
publisher = "Taylor and Francis Ltd.",
number = "5",

}

Numerical predictions of mixed convection and flow separation in a vertical duct with arbitrary cross section. / Cheng, Chin-Hsiang; Huang, Shuen Yi; Aung, Win.

In: Numerical Heat Transfer; Part A: Applications, Vol. 41, No. 5, 05.06.2002, p. 491-514.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Numerical predictions of mixed convection and flow separation in a vertical duct with arbitrary cross section

AU - Cheng, Chin-Hsiang

AU - Huang, Shuen Yi

AU - Aung, Win

PY - 2002/6/5

Y1 - 2002/6/5

N2 - Recent studies on an efficient numerical approach for predicting mixed convection heat transfer and buoyancy-induced flow separations in the vertical rectangular ducts have been extended for the duct with complex geometry, testing it in several case studies. In this work, the three-dimensional parabolic model is modified by incorporating the curvilinear-coordinate finite volume method with the parabolic model. The validity of the approach has been demonstrated for several test cases, and the relative performance of the approach is also evaluated by comparing the numerical predictions with the full elliptic model solutions. The approach has been used to seek, in one case, detailed information on heat transfer and reversed flow behavior for the flow within a vertical parabolic duct. Results indicate that the three-dimensional parabolic model can be implemented and applied to predict mixed convective flows in ducts with arbitrary cross-sectional shapes, leading to satisfactory accuracy.

AB - Recent studies on an efficient numerical approach for predicting mixed convection heat transfer and buoyancy-induced flow separations in the vertical rectangular ducts have been extended for the duct with complex geometry, testing it in several case studies. In this work, the three-dimensional parabolic model is modified by incorporating the curvilinear-coordinate finite volume method with the parabolic model. The validity of the approach has been demonstrated for several test cases, and the relative performance of the approach is also evaluated by comparing the numerical predictions with the full elliptic model solutions. The approach has been used to seek, in one case, detailed information on heat transfer and reversed flow behavior for the flow within a vertical parabolic duct. Results indicate that the three-dimensional parabolic model can be implemented and applied to predict mixed convective flows in ducts with arbitrary cross-sectional shapes, leading to satisfactory accuracy.

UR - http://www.scopus.com/inward/record.url?scp=0036098621&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036098621&partnerID=8YFLogxK

U2 - 10.1080/104077802753570338

DO - 10.1080/104077802753570338

M3 - Article

VL - 41

SP - 491

EP - 514

JO - Numerical Heat Transfer; Part A: Applications

JF - Numerical Heat Transfer; Part A: Applications

SN - 1040-7782

IS - 5

ER -