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在多孔介质系统中,在通用牛顿流体流动过程中,稀释物种运输
Christopher A Bowers1,2, Cass T Miller1
1The University of North Carolina, Chapel Hill, NC, USA.
Water resources research
|October 17, 2025
概括
本研究开发了一种通过多孔介质在通用牛顿流体 (GNFs) 中稀释物种运输的预测模型. 新模型避免了复杂的非牛顿实验,为流体动力学和运输现象提供了更广泛的适用性.
科学领域:
- 流体动力学 流体动力学
- 运输现象 运输现象
- 的媒体科学 的媒体科学
背景情况:
- 稀释物种运输在通用牛顿流体 (GNF) 中的传统模型依赖于经验,缺乏预测能力的Fickian形式方法.
- 现有的方法与不同的系统和条件作斗争,需要针对每个场景进行专门的实验.
研究的目的:
- 通过各种多孔介质在GNF中发展稀释物种运输的预测框架.
- 建立一种绕过非牛顿特异实验和参数估计的方法.
主要方法:
- 进行了流体流动和物种运输的微观和宏观模拟.
- 采用无维分析和符号回归来推导一个预测分散性函数.
- 使用牛顿流体属性和流体通过风湿学来表征多孔介质.
主要成果:
- 证明使用牛顿介质表征和流体类学可以预测GNF流动.
- 证实了稀释物种运输的Fickian极限,非线性分散性取决于介质,流体特性和流速.
- 开发了基于系统属性的分散性的预测函数.
结论:
- 衍生函数准确地预测了通过多孔介质在GNF中稀释物种的运输.
- 这种方法提供了一个通用的,预测的解决方案,而不需要非牛顿的特定实验.
- 进步了解复杂的流体多孔介质系统中的运输现象.
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