A Nonlinear Elimination Preconditioned Inexact Newton Algorithm
A Nonlinear Elimination Preconditioned Inexact Newton Algorithm
复制标题
一种非线性消除预条件不精确牛顿算法
DOI:
10.1137/21m1416138
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发表时间:
2022-06
期刊:
影响因子:
--
通讯作者:
David E. Keyes
中科院分区:
文献类型:
--
作者:
Lulu Liu;Feng-Nan Hwang;Li Luo;Xiao-Chuan Cai;David E. Keyes
. A nonlinear elimination preconditioned inexact Newton (NEPIN) algorithm is pro- posed for problems with localized strong nonlinearities. Due to unbalanced nonlinearities (``nonlinear stiffness""), the traditional inexact Newton method often exhibits a long plateau in the norm of the nonlinear residual or even fails to converge. NEPIN implicitly removes the components causing trou-ble for the global convergence through a correction based on nonlinear elimination within a subspace that provides a modified direction for the global Newton iteration. Numerical experiments show that NEPIN can be more robust than global inexact Newton algorithms and maintain fast convergence even for challenging problems, such as full potential transonic flows. NEPIN complements several previously studied nonlinear preconditioners with which it compares favorably experimentally on a classic shocked duct flow problem considered herein. NEPIN is shown to be fairly insensitive to mesh resolution and ``bad"" subproblem identification based on the local Mach number or the local nonlinear residual for transonic flow over a wing.
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影响因子:
2.1
作者:
F. Chaouqui;M. Gander;P. Kumbhar;T. Vanzan
通讯作者:
F. Chaouqui;M. Gander;P. Kumbhar;T. Vanzan
DOI:
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发表时间:
2000
期刊:
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影响因子:
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作者:
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通讯作者:
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影响因子:
2.8
作者:
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通讯作者:
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DOI:
10.1137/15m102887x
发表时间:
2016-05
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
V. Dolean;M. Gander;W. Kheriji;Felix Kwok;R. Masson
通讯作者:
V. Dolean;M. Gander;W. Kheriji;Felix Kwok;R. Masson
DOI:
10.1137/040611653
发表时间:
2005-05
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
Hengbin An
通讯作者:
Hengbin An