Fully implicit solution of large-scale non-equilibrium radiation diffusion with high order time integration
Fully implicit solution of large-scale non-equilibrium radiation diffusion with high order time integration
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DOI：
10.1016/j.jcp.2004.10.031
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发表时间：
2005-04
影响因子：
4.1
通讯作者：
P. Brown;D. Shumaker;C. Woodward
中科院分区：
文献类型：
--
作者：
P. Brown;D. Shumaker;C. Woodward
本文提出了一种求解全隐式辐射扩散问题的方法。这种解决方案的方法，利用高阶时间积分技术，不精确的牛顿-克雷洛夫非线性求解器，多重网格预处理。我们探讨了高阶时间积分方法的优点和缺点的全隐式制定的二维和三维问题与列表的不透明度和高度非线性融合源项。
We present a solution method for fully implicit radiation diffusion problems discretized on meshes having millions of spatial zones. This solution method makes use of high order in time integration techniques, inexact Newton–Krylov nonlinear solvers, and multigrid preconditioners. We explore the advantages and disadvantages of high order time integration methods for the fully implicit formulation on both two- and three-dimensional problems with tabulated opacities and highly nonlinear fusion source terms.