TY - GEN
T1 - A combined finite element-upwind finite volume-Newton's method for liquid-feed direct methanol fuel cell simulations
AU - Sun, Pengtao
AU - Xue, Guangri
AU - Wang, Chaoyang
AU - Xu, Jinchao
N1 - Generated from Scopus record by KAUST IRTS on 2023-02-15
PY - 2008/12/1
Y1 - 2008/12/1
N2 - In this paper, a three-dimensional, two-phase transport model of liquid-feed direct methanol fuel cell (DMFC), which is based on the multiphase mixture formulation and encompasses all components in a DMFC using a single computational domain, is specifically studied and simulated by a combined finite element-upwind finite volume discretization along with Newton's method, where flow, species, charge-transport and energy equations are simultaneously addressed. Numerical simulations in 3D are carried out to explore and design efficient and robust numerical algorithms for the sake of fast and convergent nonlinear iteration. A more reasonable source term of water transport equation, and a series of efficient numerical algorithms and discretizations are specifically designed and analyzed to assist in achieving this goal. Our numerical simulations demonstrate that the convergent and correct physical solutions can be attained within 100 more steps, against the oscillating and long-running nonlinear iterations (up to 5000 steps) operated by standard finite element/volume method without new numerical techniques. Copyright © 2008 by ASME.
AB - In this paper, a three-dimensional, two-phase transport model of liquid-feed direct methanol fuel cell (DMFC), which is based on the multiphase mixture formulation and encompasses all components in a DMFC using a single computational domain, is specifically studied and simulated by a combined finite element-upwind finite volume discretization along with Newton's method, where flow, species, charge-transport and energy equations are simultaneously addressed. Numerical simulations in 3D are carried out to explore and design efficient and robust numerical algorithms for the sake of fast and convergent nonlinear iteration. A more reasonable source term of water transport equation, and a series of efficient numerical algorithms and discretizations are specifically designed and analyzed to assist in achieving this goal. Our numerical simulations demonstrate that the convergent and correct physical solutions can be attained within 100 more steps, against the oscillating and long-running nonlinear iterations (up to 5000 steps) operated by standard finite element/volume method without new numerical techniques. Copyright © 2008 by ASME.
UR - https://asmedigitalcollection.asme.org/FUELCELL/proceedings/FUELCELL2008/43181/851/320500
UR - http://www.scopus.com/inward/record.url?scp=77952665676&partnerID=8YFLogxK
U2 - 10.1115/FuelCell2008-65035
DO - 10.1115/FuelCell2008-65035
M3 - Conference contribution
SN - 0791843181
SP - 851
EP - 864
BT - Proceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology
ER -