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En el instante 11 de octubre de 2025, 1:23:19 UTC,
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Añadido recurso A reaction–convection–diffusion model for PEM fuel cells a A reaction–convection–diffusion model for PEM fuel cells
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2 | "author": "L Blanco-Cocom, S Botello-Rionda, LC Ordo\u00f1ez, SI | 2 | "author": "L Blanco-Cocom, S Botello-Rionda, LC Ordo\u00f1ez, SI | ||
3 | Valdez", | 3 | Valdez", | ||
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43 | -reaction-convection-diffusion-model-for-pem-fuel-cells-8082aaea20cb", | 43 | -reaction-convection-diffusion-model-for-pem-fuel-cells-8082aaea20cb", | ||
44 | "notes": "In this paper, we present a novel 1D singularly perturbed | 44 | "notes": "In this paper, we present a novel 1D singularly perturbed | ||
45 | reaction\u2013convection\u2013diffusion mathematical model, with | 45 | reaction\u2013convection\u2013diffusion mathematical model, with | ||
46 | non-linear coefficients (SP-RCD model), for the physical modeling of a | 46 | non-linear coefficients (SP-RCD model), for the physical modeling of a | ||
47 | fuel cell. The model is a generalization of the macro-homogeneous | 47 | fuel cell. The model is a generalization of the macro-homogeneous | ||
48 | model, revisited from the point of view of singularly perturbed | 48 | model, revisited from the point of view of singularly perturbed | ||
49 | differential equations. To solve the system of coupled second-order | 49 | differential equations. To solve the system of coupled second-order | ||
50 | differential equations, we propose a numerical scheme based on | 50 | differential equations, we propose a numerical scheme based on | ||
51 | vanishing the artificial diffusion of the finite element method within | 51 | vanishing the artificial diffusion of the finite element method within | ||
52 | an iterative fixed-point algorithm. We also propose an adaptive | 52 | an iterative fixed-point algorithm. We also propose an adaptive | ||
53 | Shishkin mesh, as a function of the derivative of the current density | 53 | Shishkin mesh, as a function of the derivative of the current density | ||
54 | in the subdomain with a fast-growing slope. Results of the proposed | 54 | in the subdomain with a fast-growing slope. Results of the proposed | ||
55 | SP-RCD model are comparable to those of the macro-homogeneous model. | 55 | SP-RCD model are comparable to those of the macro-homogeneous model. | ||
56 | In addition, it describes the oxygen concentration profiles in the | 56 | In addition, it describes the oxygen concentration profiles in the | ||
57 | thickness of the cathode catalytic layer under different operating | 57 | thickness of the cathode catalytic layer under different operating | ||
58 | currents and represents, with enough precision, the experimental | 58 | currents and represents, with enough precision, the experimental | ||
59 | polarization curve reported in the literature.", | 59 | polarization curve reported in the literature.", | ||
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86 | perturbed reaction\u2013convection\u2013diffusion mathematical model, | ||||
87 | with non-linear coefficients (SP-RCD model), for the physical modeling | ||||
88 | of a fuel cell. The model is a generalization of the macro-homogeneous | ||||
89 | model, revisited from the point of view of singularly perturbed | ||||
90 | differential equations. To solve the system of coupled second-order | ||||
91 | differential equations, we propose a numerical scheme based on | ||||
92 | vanishing the artificial diffusion of the finite element method within | ||||
93 | an iterative fixed-point algorithm. We also propose an adaptive | ||||
94 | Shishkin mesh, as a function of the derivative of the current density | ||||
95 | in the subdomain with a fast-growing slope. Results of the proposed | ||||
96 | SP-RCD model are comparable to those of the macro-homogeneous model. | ||||
97 | In addition, it describes the oxygen concentration profiles in the | ||||
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100 | polarization curve reported in the literature.", | ||||
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160 | "title": "A reaction\u2013convection\u2013diffusion model for PEM | 199 | "title": "A reaction\u2013convection\u2013diffusion model for PEM | ||
161 | fuel cells", | 200 | fuel cells", | ||
162 | "type": "dataset", | 201 | "type": "dataset", | ||
163 | "url": "https://doi.org/10.1016/j.finel.2021.103703", | 202 | "url": "https://doi.org/10.1016/j.finel.2021.103703", | ||
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