A common approach to the computation of coarse-scale steady states and to consistent initialization on a slow manifold
A common approach to the computation of coarse-scale steady states and to consistent initialization on a slow manifold
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计算粗尺度稳态和在慢流形上进行一致初始化的常用方法
DOI:
10.1016/j.compchemeng.2010.12.002
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
I. Kevrekidis
中科院分区:
文献类型:
--
作者:
C. Vandekerckhove;Benjamin Sonday;A. Makeev;D. Roose;I. Kevrekidis
We present a simple technique for the computation of coarse-scale steady states of dynamical systems with time scale separation in the form of a “wrapper” around a fine-scale simulator. We discuss how this approach alleviates certain problems encountered by comparable existing approaches, and illustrate its use by computing coarse-scale steady states of a lattice Boltzmann fine scale code. Interestingly, in the same context of multiple time scale problems, the approach can be slightly modified to provide initial conditions on the slow manifold with prescribed coarse-scale observables. The approach is based on appropriately designed short bursts of the fine-scale simulator whose results are used to track changes in the coarse variables of interest, a core component of the equation-free framework.
DOI:
--
发表时间:
2005
期刊:
日本科学教育学会年会論文集 第29号
影响因子:
--
作者:
中山 迅;大場裕子;猿田祐嗣
通讯作者:
猿田祐嗣