Preconditioning a Newton-Krylov solver for all-speed melt pool flow physics
نویسندگان
چکیده
منابع مشابه
Preconditioning Newton- Krylov Methods for Variably Saturated Flow
In this paper, we compare the effectiveness of three preconditioning strategies in simulations of variably saturated flow. Using Richards’ equation as our model, we solve the nonlinear system using a Newton-Krylov method. Since Krylov solvers can stagnate, resulting in slow convergence, we investigate different strategies of preconditioning the Jacobian system. Our work uses a multigrid method ...
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2019
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2019.07.045