On the sub-model errors of a generalized one-way coupling scheme for linking models at different scales
On the sub-model errors of a generalized one-way coupling scheme for linking models at different scales
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不同尺度连接模型的广义单向耦合方案的子模型误差
DOI:
10.1016/j.advwatres.2017.09.005
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发表时间:
2017-11
影响因子:
4.7
通讯作者:
Yang JZ
中科院分区:
文献类型:
--
作者:
Zeng Jicai;Zha Yuanyuan;Shi Liangsheng;Zhu Yan;Yang Jinzhong;Zhang Yonggen;Zhang Yonggen;Yang JZ
Multi-scale modeling of the localized groundwater flow problems in a large-scale aquifer has been extensively investigated under the context of cost-benefit controversy. An alternative is to couple the parent and child models with different spatial and temporal scales, which may result in non-trivial sub-model errors in the local areas of interest. Basically, such errors in the child models originate from the deficiency in the coupling methods, as well as from the inadequacy in the spatial and temporal discretizations of the parent and child models. In this study, we investigate the sub-model errors within a generalized one-way coupling scheme given its numerical stability and efficiency, which enables more flexibility in choosing sub-models. To couple the models at different scales, the head solution at parent scale is delivered downward onto the child boundary nodes by means of the spatial and temporal head interpolation approaches. The efficiency of the coupling model is improved either by refining the grid or time step size in the parent and child models, or by carefully locating the sub-model boundary nodes. The temporal truncation errors in the sub-models can be significantly reduced by the adaptive local time-stepping scheme. The generalized one-way coupling scheme is promising to handle the multi-scale groundwater flow problems with complex stresses and heterogeneity.
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DOI:
10.3133/tm6a19
发表时间:
2006
期刊:
Techniques and Methods
影响因子:
--
作者:
R. Niswonger;D. E. Prudic;R. Regan
通讯作者:
R. Niswonger;D. E. Prudic;R. Regan
DOI:
10.3133/tm6a16
发表时间:
2005
期刊:
Techniques and Methods
影响因子:
--
作者:
A. W. Harbaugh
通讯作者:
A. W. Harbaugh
影响因子:
2.6
作者:
E. Morway;R. Niswonger;C. Langevin;R. Bailey;R. Healy
通讯作者:
E. Morway;R. Niswonger;C. Langevin;R. Bailey;R. Healy
影响因子:
4.7
作者:
S. Mehl;M. Hill
通讯作者:
S. Mehl;M. Hill
影响因子:
2.6
作者:
F. Székely
通讯作者:
F. Székely