The criterion of subscale sufficiency and its application to the relationship between static capillary pressure, saturation and interfacial areas

The criterion of subscale sufficiency and its application to the relationship between static capillary pressure, saturation and interfacial areas
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子尺度充分性准则及其在静态毛细管压力、饱和度和界面面积关系中的应用

DOI:
10.1098/rspa.2015.0869
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发表时间:
2016
期刊:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
通讯作者:
P. Kurzeja
P. Kurzeja
中科院分区:
--
文献类型:
--
作者:
P. Kurzeja

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现代成像技术,增加模拟能力和扩展的理论框架,自然驱动多尺度建模的发展问题:哪些新的信息应该被考虑?鉴于需要简洁的本构关系和有效的数据评估,然而,一个重要的问题往往被忽视:哪些信息是足够的?为此,本文引入了子尺度充分性的形式化准则。该标准规定了所选择的本构关系是否在多尺度框架内将所有必要的信息从微观传递到宏观。它进一步提供了一个方案,以改善本构关系。直接应用于静态毛细管压力演示的有用性和条件的子尺度充分的饱和度和界面面积。
Modern imaging techniques, increased simulation capabilities and extended theoretical frameworks, naturally drive the development of multiscale modelling by the question: which new information should be considered? Given the need for concise constitutive relationships and efficient data evaluation; however, one important question is often neglected: which information is sufficient? For this reason, this work introduces the formalized criterion of subscale sufficiency. This criterion states whether a chosen constitutive relationship transfers all necessary information from micro to macroscale within a multiscale framework. It further provides a scheme to improve constitutive relationships. Direct application to static capillary pressure demonstrates usefulness and conditions for subscale sufficiency of saturation and interfacial areas.
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