Three-dimensional numerical simulation of fluid flow with phase change heat transfer in an asymmetrically heated porous channel

H. Y. Li, K. C. Leong, L. W. Jin, J. C. Chai

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Fluid flow with phase change heat transfer in a three-dimensional porous channel with asymmetrically heating from one side is numerically studied in this paper. The "modified" Kirchhoff method is used to deal with the spatial discontinuity in the thermal diffusion coefficient in the energy equation. The velocity and temperature fields, as well as the liquid saturation field on the heated section of the wall with different Peclet and Rayleigh numbers are investigated. The results show that the liquid flow bypasses the two-phase zone, while the vapor flows primarily to the interface between the sub-cooled liquid zone and the two-phase zone. An increase in the Peclet number decreases the two-phase region while an increase in the Rayleigh number helps to spread the heat to a larger region of the domain. The distribution of the liquid saturation on the heated section of the wall indicates that the minimum liquid saturation increases with the increase of both the Peclet and Rayleigh numbers.

Original languageEnglish
Pages (from-to)2363-2375
Number of pages13
JournalInternational Journal of Thermal Sciences
Volume49
Issue number12
Early online date3 Sep 2010
DOIs
Publication statusPublished - Dec 2010
Externally publishedYes

Fingerprint

fluid flow
Peclet number
Flow of fluids
Rayleigh number
heat transfer
Heat transfer
Computer simulation
Liquids
liquids
saturation
simulation
bypasses
liquid flow
thermal diffusion
Thermal diffusion
discontinuity
temperature distribution
diffusion coefficient
velocity distribution
vapors

Cite this

@article{c473e919d20c42e7939f12d694b523f6,
title = "Three-dimensional numerical simulation of fluid flow with phase change heat transfer in an asymmetrically heated porous channel",
abstract = "Fluid flow with phase change heat transfer in a three-dimensional porous channel with asymmetrically heating from one side is numerically studied in this paper. The {"}modified{"} Kirchhoff method is used to deal with the spatial discontinuity in the thermal diffusion coefficient in the energy equation. The velocity and temperature fields, as well as the liquid saturation field on the heated section of the wall with different Peclet and Rayleigh numbers are investigated. The results show that the liquid flow bypasses the two-phase zone, while the vapor flows primarily to the interface between the sub-cooled liquid zone and the two-phase zone. An increase in the Peclet number decreases the two-phase region while an increase in the Rayleigh number helps to spread the heat to a larger region of the domain. The distribution of the liquid saturation on the heated section of the wall indicates that the minimum liquid saturation increases with the increase of both the Peclet and Rayleigh numbers.",
keywords = "Phase change, Porous media, Three-dimensional, Two-phase mixture model",
author = "Li, {H. Y.} and Leong, {K. C.} and Jin, {L. W.} and Chai, {J. C.}",
year = "2010",
month = "12",
doi = "10.1016/j.ijthermalsci.2010.07.018",
language = "English",
volume = "49",
pages = "2363--2375",
journal = "International Journal of Thermal Sciences",
issn = "1290-0729",
publisher = "Elsevier",
number = "12",

}

Three-dimensional numerical simulation of fluid flow with phase change heat transfer in an asymmetrically heated porous channel. / Li, H. Y.; Leong, K. C.; Jin, L. W.; Chai, J. C.

In: International Journal of Thermal Sciences, Vol. 49, No. 12, 12.2010, p. 2363-2375.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Three-dimensional numerical simulation of fluid flow with phase change heat transfer in an asymmetrically heated porous channel

AU - Li, H. Y.

AU - Leong, K. C.

AU - Jin, L. W.

AU - Chai, J. C.

PY - 2010/12

Y1 - 2010/12

N2 - Fluid flow with phase change heat transfer in a three-dimensional porous channel with asymmetrically heating from one side is numerically studied in this paper. The "modified" Kirchhoff method is used to deal with the spatial discontinuity in the thermal diffusion coefficient in the energy equation. The velocity and temperature fields, as well as the liquid saturation field on the heated section of the wall with different Peclet and Rayleigh numbers are investigated. The results show that the liquid flow bypasses the two-phase zone, while the vapor flows primarily to the interface between the sub-cooled liquid zone and the two-phase zone. An increase in the Peclet number decreases the two-phase region while an increase in the Rayleigh number helps to spread the heat to a larger region of the domain. The distribution of the liquid saturation on the heated section of the wall indicates that the minimum liquid saturation increases with the increase of both the Peclet and Rayleigh numbers.

AB - Fluid flow with phase change heat transfer in a three-dimensional porous channel with asymmetrically heating from one side is numerically studied in this paper. The "modified" Kirchhoff method is used to deal with the spatial discontinuity in the thermal diffusion coefficient in the energy equation. The velocity and temperature fields, as well as the liquid saturation field on the heated section of the wall with different Peclet and Rayleigh numbers are investigated. The results show that the liquid flow bypasses the two-phase zone, while the vapor flows primarily to the interface between the sub-cooled liquid zone and the two-phase zone. An increase in the Peclet number decreases the two-phase region while an increase in the Rayleigh number helps to spread the heat to a larger region of the domain. The distribution of the liquid saturation on the heated section of the wall indicates that the minimum liquid saturation increases with the increase of both the Peclet and Rayleigh numbers.

KW - Phase change

KW - Porous media

KW - Three-dimensional

KW - Two-phase mixture model

UR - http://www.scopus.com/inward/record.url?scp=77957857194&partnerID=8YFLogxK

U2 - 10.1016/j.ijthermalsci.2010.07.018

DO - 10.1016/j.ijthermalsci.2010.07.018

M3 - Article

VL - 49

SP - 2363

EP - 2375

JO - International Journal of Thermal Sciences

JF - International Journal of Thermal Sciences

SN - 1290-0729

IS - 12

ER -