This work presents direct numerical simulations of two-phase flows in fuel cell minichannels. Different two-phase flow configurations can be observed in such minichannels, which depend on gas-flow rate, liquid holdup, and wettability of each wall. These flows are known to have a significant impact on the fuel cell’s performance. The different two-phase flow configurations must be studied specially concerning the prediction of the transition among them. In the fuel cell minichannels, experimental investigations are difficult to perform because of the small size of the device and the difficult control of the wettability properties of the walls. In such systems, numerical approach can provide useful information with a perfect control of the flow characteristics, particularly for the wettability aspect. The numerical code used in this study is the JADIM code developed at IMFT, which is based on a “volume of fluid” method for interface capturing without any interface reconstruction. The numerical description of the surface tension is one of the crucial points in studying such systems where capillary effects control the phase distribution. The static and the dynamics of the triple line between the liquid, the gas, and the wall is also an essential physical mechanism to consider. The numerical implementation of this model is validated in simple situations where analytical solutions are available for the shape and the pressure jump at the interface. In this paper we present the characteristics of the JADIM code and its potential for the studies of the fuel cell internal flows. Numerical simulations on the two-phase flows on walls, in corners, and inside channels are shown.
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e-mail: dupontjb@imft.fr
e-mail: legendre@imft.fr
e-mail: anna-maria.morgante@renault.com
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August 2011
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Numerical Simulation for Two-Phase Flows in Fuel Cell Minichannels
Jean-Baptiste Dupont,
Jean-Baptiste Dupont
Institut de Mécanique des Fluides de Toulouse,
e-mail: dupontjb@imft.fr
UMR CNRS/INPT/UPS 5502
, Allée du Professeur Camille Soula, 31400 Toulouse, France
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Dominique Legendre,
Dominique Legendre
Institut de Mécanique des Fluides de Toulouse,
e-mail: legendre@imft.fr
UMR CNRS/INPT/UPS 5502
, Allée du Professeur Camille Soula, 31400 Toulouse, France
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Anna Maria Morgante
e-mail: anna-maria.morgante@renault.com
Anna Maria Morgante
RENAULT Technocentre
, 1 Avenue du Golf, 78288 Guyancourt Cedex, France
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Jean-Baptiste Dupont
Institut de Mécanique des Fluides de Toulouse,
UMR CNRS/INPT/UPS 5502
, Allée du Professeur Camille Soula, 31400 Toulouse, Francee-mail: dupontjb@imft.fr
Dominique Legendre
Institut de Mécanique des Fluides de Toulouse,
UMR CNRS/INPT/UPS 5502
, Allée du Professeur Camille Soula, 31400 Toulouse, Francee-mail: legendre@imft.fr
Anna Maria Morgante
RENAULT Technocentre
, 1 Avenue du Golf, 78288 Guyancourt Cedex, Francee-mail: anna-maria.morgante@renault.com
J. Fuel Cell Sci. Technol. Aug 2011, 8(4): 041008 (7 pages)
Published Online: March 31, 2011
Article history
Received:
December 9, 2005
Revised:
April 28, 2006
Online:
March 31, 2011
Published:
March 31, 2011
Citation
Dupont, J., Legendre, D., and Morgante, A. M. (March 31, 2011). "Numerical Simulation for Two-Phase Flows in Fuel Cell Minichannels." ASME. J. Fuel Cell Sci. Technol. August 2011; 8(4): 041008. https://doi.org/10.1115/1.3176222
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