Título:
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Numerical study of droplet dynamics in a polymer electrolyte fuel cell gas channel using an embedded Eulerian-Lagrangian approach
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Autor/a:
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Jarauta, Alex; Ryzhakov, Pavel; Secanell, Marc; Pons Prats, Jordi; Waghmare, Prashant R.
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Abstract:
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An embedded Eulerian-Lagrangian formulation for the simulation of droplet dynamics within a polymer
electrolyte fuel cell (PEFC) channel is presented. Air is modeled using an Eulerian formulation, whereas
water is described with a Lagrangian framework. Using this framework, the gas-liquid interface can be
accurately identified. The surface tension force is computed using the curvature defined by the boundary
of the Lagrangian mesh. The method naturally accounts for material property changes across the
interface and accurately represents the pressure discontinuity. A sessile drop in a horizontal surface, a
sessile drop in an inclined plane and droplets in a PEFC channel are solved for as numerical examples and
compared to experimental data. Numerical results are in excellent agreement with experimental data.
Numerical results are also compared to results obtained with the semi-analytical model previously
developed by the authors in order to discuss the limitations of the semi-analytical approach. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Física -Proton exchange membrane fuel cells -Eulerian graph theory -Fuel cells -Fuel cells -Droplet dynamics -Surface tension -Embedded -Piles de combustible |
Derechos:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipo de documento:
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Artículo - Versión publicada Artículo |
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