Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method
Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method
复制标题
使用混合离散连续方法对快速颗粒流进行多尺度建模
DOI:
10.1016/j.powtec.2016.08.017
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发表时间:
2015-12
影响因子:
5.2
通讯作者:
Jinghai Li
中科院分区:
文献类型:
--
作者:
Xizhong Chen;Junwu Wang;Jinghai Li
Both discrete and continuum models have been widely used to study rapid granular flow, discrete model is accurate but computationally expensive, whereas continuum model is computationally efficient but its accuracy is doubtful in many situations. Here we propose a hybrid discrete-continuum method to profit from the merits but discard the drawbacks of both discrete and continuum models. Continuum model is used in the regions where it is valid and discrete model is used in the regions where continuum description fails, they are coupled via dynamical exchange of parameters in the overlap regions. Simulation of granular channel flow demonstrates that the proposed hybrid discrete-continuum method is nearly as accurate as discrete model, with much less computational cost.
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影响因子:
5.2
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DOI:
10.1615/intjmultcompeng.v2.i2.20
发表时间:
2004
影响因子:
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H. S. Wijesinghe;N. Hadjiconstantinou
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DOI:
10.2514/6.1990-1690
发表时间:
1990-06
期刊:
--
影响因子:
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