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Multiscale multipha...
Multiscale multiphase simulations at the gas channel/gas diffusion layer interface inside polymer electrolyte fuel cells
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- Andersson, M. (författare)
- Lund University,Lunds universitet,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Jülich Research Centre
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- Yu, J. (författare)
- Jülich Research Centre
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- Beale, S. (författare)
- Queen's University at Kingston,Jülich Research Centre
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visa fler...
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- Froning, D. (författare)
- Jülich Research Centre
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- Lehnert, W. (författare)
- Jülich Aachen Research Alliance (JARA),Jülich Research Centre,RWTH Aachen University
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Cigolotti, Viviana (redaktör/utgivare)
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Barchiesi, Chiara (redaktör/utgivare)
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Chianella, Michela (redaktör/utgivare)
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visa färre...
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(creator_code:org_t)
- 2017
- 2017
- Engelska 2 s.
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Ingår i: EFC 2017 - Proceedings of the 7th European Fuel Cell Piero Lunghi Conference. - 9788882863241 ; , s. 435-436
- Relaterad länk:
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https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- A computational fluid dynamic model describing a straight channel, relevant for water removal inside a PEFC, is developed. A volume of fluid (VOF) approach is used to investigate the two-phase interface resolved flow behavior inside the gas channel including the gas diffusion layer (GDL) surface. The size and contact angle of the liquid inlet at the interface are calculated with the lattice Boltzmann approach. From our study, it is clear that the impact on the two-phase flow pattern for different hydrophobic/hydrophilic characteristics, i.e., contact angles, at the walls and at the GDL surface is significant, compared to a situation where the walls and the interface are neither hydrophobic nor hydrophilic, i.e., 90° contact angle at the walls and also at the GDL surface. A location at the side of the channel gives corner flow with a convex surface shape, while a location of the GDL surface liquid inlet in the middle of the gas channel gives droplet formation, having hydrophilic walls and a hydrophobic GDL surface.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- gas channel
- gas diffusion layer
- PEFC
- volume of fluid
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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