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Updated: Jul 17, 2025

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Published on: September 2, 2016

在多孔介质中的统计有效扩散率估计,使用用于同步仪用户的集成现场成像工作流

James Le Houx¹, Siul Ruiz², Daniel McKay Fletcher^2,3

¹Department, Diamond Light Source, Harwell Science and Innovation Campus, Fermi Ave, Didcot, Oxfordshire OX11 0DE UK.

Transport in porous media

|September 4, 2023

概括

这项研究增强了OpenImpala,以更快,更准确地估计多孔介质传输参数. 改进的模型提供了敏捷的,大规模的有效扩散性,这对于实时同步仪成像分析至关重要.

科学领域:

孔隙介质物理学的物理
计算建模计算建模
同步成像成像技术

背景情况:

穿孔介质的运输在许多科学和工程领域都至关重要.
基于图像的建模提供了详细的孔尺度洞察力,但在计算上是密集的.
为了有效的成像活动,需要实时,大规模的参数估计.

研究的目的:

为了增强基于图像的OpenImpala模型解决程序.
为了能够快速估计散装规模的有效运输参数,特别是有效的扩散率.
根据既有方法验证增强模型的准确性和计算速度.

主要方法:

修改了OpenImpala的边界条件和多尺度均化方程.
在各种基本体积大小中估计有效的孔隙扩散率.
与COMSOL Multiphysics进行验证,并比较计算性能.

主要成果:

OpenImpala精确估计了有效的扩散率,与COMSOL相比.
使用有效扩散率的均质化域与完整模型相比,显示的误差不到2%.
开放Impala模拟比COMSOL快两个数量级.

结论:

增强的OpenImpala提供了一个快速灵活的工具来评估多孔媒体.
它适用于同步光束线上的现场断层扫描处理管道.
该模型有助于实时指导成像活动.

关键词:

均质化均质化均质化基于图像的建模.数字方法数字方法.的媒介的媒介

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