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Parallel sweep-based preconditioner for the solution of the linear Boltzmann transport equation

Autor
Borrell, R.; Colomer, G.; Lehmkuhl, O.; Rodriguez, I.; Oliva, A.
Tipus d'activitat
Article en revista
Revista
Computers and fluids
Data de publicació
2013-12-15
Volum
88
Pàgina inicial
884
Pàgina final
890
DOI
https://doi.org/10.1016/j.compfluid.2013.09.027 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0045793013003800 Obrir en finestra nova
Resum
The Boltzmann transport equation is solved in the context of radiative heat transfer, for an isotropically scattering medium with reflecting boundaries. Under these circumstances, the different ordinates of the angular flux are mutually coupled. We explore here the use of a parallel sweep-based block diagonal preconditioner as a complement of the GMRES solver on the solution of the discretization matrix (which includes all the inter-ordinate couplings). The validity of this approach, when compar...
Paraules clau
Boltzmann transport equation, GMRES, Krylov subspace, Parallel sweep, Preconditioner, Sn ordinates
Grup de recerca
CTTC - Centre Tecnològic de la Transferència de Calor
TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group

Participants