Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR029415 |
Effect of grain shape on quasi‐static fluid‐fluid displacement in porous media | |
Zhongzheng Wang; Jean‐; Michel Pereira; Yixiang Gan | |
2021-03-20 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | We study how grain shapes impact multiphase flow in porous media in the quasi‐static regime using an extended pore‐network model. The algorithm allows the explicit determination of different types of pore‐scale instabilities and tracks the interface motion during fluid‐fluid displacement process. It also includes the volume capacitance model, such that both the evolution of capillary pressure signal and sizes of Haines jumps can be captured. Further, it considers the pinning of menisci at sharp edges of grains, through which the distribution of effective contact angles can be obtained. Simulations are carried out across a wide range of wetting conditions for different particle shapes. Our results show that the effective contact angle distribution during displacement widens as the grain becomes more angular, which consequently modifies the macroscopic fluid invasion morphology. By analyzing various characteristic metrics during displacement, including capillary pressure signal, Haines jump size distribution, and fractal dimension, our results highlight the profound influence of particle shape on the multiphase flow. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/319838 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Zhongzheng Wang,Jean‐,Michel Pereira,等. Effect of grain shape on quasi‐static fluid‐fluid displacement in porous media[J]. Water Resources Research,2021. |
APA | Zhongzheng Wang,Jean‐,Michel Pereira,&Yixiang Gan.(2021).Effect of grain shape on quasi‐static fluid‐fluid displacement in porous media.Water Resources Research. |
MLA | Zhongzheng Wang,et al."Effect of grain shape on quasi‐static fluid‐fluid displacement in porous media".Water Resources Research (2021). |
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