Transient behavior of fluid flow and heat transfer with phase change in vertical porous channels

被引：27

作者：

Li, H. Y. ^{[1
]}

Leong, K. C. ^{[1
]}

Jin, L. W. ^{[1
]}

Chai, J. C. ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

[2] Petr Inst, Dept Mech Engn, Abu Dhabi, U Arab Emirates

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 23-24期

关键词：

Transient; Two-phase mixture model; Vertical porous channel; Aiding and opposing flows; 2-PHASE MIXTURE MODEL; MEMBRANE FUEL-CELL; MIXED CONVECTION; NUMERICAL ALGORITHM; NATURAL-CONVECTION; MEDIA; SURFACE; LAYER; WALL;

D O I：

10.1016/j.ijheatmasstransfer.2010.07.039

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The transient behavior of flow boiling in vertical porous channels is numerically studied in this paper. The velocity and temperature fields under different parameters for both aiding and opposing flows are investigated. Distinctly different flow and heat transfer features are observed in the comparison of aiding and opposing flows. An analysis of liquid saturation along the heated wall indicates that the minimum liquid saturation for aiding flow is located at the tail of the heated section, whereas for opposing flow, it is within the heated section and shifts upstream with the increase of Rayleigh number and decrease of Peclet number. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：5209 / 5222

页数：14

共 37 条

[1] Analyses of heat and water transport interactions in a proton exchange membrane fuel cell [J].

Afshari, E. ;

Jazayeri, S. A. .

JOURNAL OF POWER SOURCES, 2009, 194 (01) :423-432

[2]

Boberg T.C., 1988, THERMAL METHODS OIL

[3] Two-phase flow and evaporation in model fibrous media - Application to the gas diffusion layer of PEM fuel cells [J].

Chapuis, O. ;

Prat, M. ;

Quintard, M. ;

Chane-Kane, E. ;

Guillot, O. ;

Mayer, N. .

JOURNAL OF POWER SOURCES, 2008, 178 (01) :258-268

[4] Magnetohydrodynamics-mixed convection from radiate vertical isothermal surface embedded in a saturated porous media [J].

Damseh, RA .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 2006, 73 (01) :54-59

[5] Modeling of coupled heat and mass transfers with phase change in a porous medium: Application to superheated steam drying [J].

Daurelle, JV ;

Topin, F ;

Occelli, R .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1998, 33 (01) :39-63

[6]

Faghri Amir., 1995, HEAT PIPE SCI TECHNO

[7] The mixed convection plume along a vertical adiabatic surface embedded in a non-Darcian porous medium [J].

Jang, JY ;

Shiang, CT .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1997, 40 (07) :1693-1699

[8] MIXED CONVECTION IN POROUS-MEDIA ADJACENT TO A VERTICAL UNIFORM HEAT-FLUX SURFACE [J].

JOSHI, Y ;

GEBHART, B .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1985, 28 (09) :1783-1786

[9] Characterization of flooding and two-phase flow in polymer electrolyte membrane fuel cell stacks [J].

Karimi, G. ;

Jafarpour, F. ;

Li, X. .

JOURNAL OF POWER SOURCES, 2009, 187 (01) :156-164

[10] NON-DARCY MIXED CONVECTION ALONG A VERTICAL WALL IN A SATURATED POROUS-MEDIUM [J].

LAI, FC ;

KULACKI, FA .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1991, 113 (01) :252-255

← 1 2 3 4 →