粗糙断裂多孔介质中电导率和流势的分形研究

IF 2.5 3区工程技术 Q2 MECHANICS

European Journal of Mechanics B-fluids Pub Date : 2024-02-27 DOI:10.1016/j.euromechflu.2024.02.009

Shanshan Yang , Kaicong Xu , Sheng Zheng

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引用次数: 0

摘要

研究表明，表面粗糙度对导电性和流势有重大影响。本文以分形理论和代表性基本体积理论为基础，介绍了具有粗糙裂缝的多孔介质中的流势模型。推导出了模型的渗透率、电导率以及流势与电势之间耦合系数的表达式。结果表明，模型的相对粗糙度和结构参数对电导率和耦合系数都有一定的影响。通过比较以往文献中的实验数据和模型的预测值，验证了模型的正确性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fractal study of electrical conductivity and streaming potential in rough fractured porous media

Research has demonstrated the significant influence of surface roughness on electrical conductivity and streaming potential. This article presents a model for the flow potential in a porous medium with rough fractures, based on fractal theory and representative elementary volume theory. Expressions for the model’s permeability, conductivity, and coupling coefficient between flow and potential are derived. The results indicate that both the relative roughness and structural parameters of the model have certain effects on the conductivity and coupling coefficient. By comparing experimental data from previous literature with the predicted values from the model, the correctness and effectiveness of the model are validated.

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来源期刊

European Journal of Mechanics B-fluids 物理-力学

CiteScore

5.90

自引率

3.80%

发文量

127

审稿时长

58 days

期刊介绍： The European Journal of Mechanics - B/Fluids publishes papers in all fields of fluid mechanics. Although investigations in well-established areas are within the scope of the journal, recent developments and innovative ideas are particularly welcome. Theoretical, computational and experimental papers are equally welcome. Mathematical methods, be they deterministic or stochastic, analytical or numerical, will be accepted provided they serve to clarify some identifiable problems in fluid mechanics, and provided the significance of results is explained. Similarly, experimental papers must add physical insight in to the understanding of fluid mechanics.