The comparison between nonlinear and linear preconditioning JFNK method for transient neutronics/thermal-hydraulics coupling problem
Annals of Nuclear Energy(2019)
摘要
•The comparison between nonlinear and linear preconditioning is performed for the transient coupling problem.•The similar convergence rate is achieved in nonlinear and linear preconditioning.•The computational efficiency of linear preconditioning is always higher than that of nonlinear preconditioning.
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关键词
JFNK,Linear precondition,Nonlinear precondition,Full implicit coupling method,Multi-physics coupling
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