Accurate and efficient maximal ball algorithm for pore network extraction

F Arand, J Hesser - Computers & Geosciences, 2017 - Elsevier
The maximal ball (MB) algorithm is a well established method for the morphological analysis
of porous media. It extracts a network of pores and throats from volumetric data. This paper …

A new method to identify void constrictions in micro-CT images of sand

HF Taylor, C O'Sullivan, WW Sim - Computers and Geotechnics, 2015 - Elsevier
Abstract Micro-Computed Tomography (micro-CT) provides 3D images of the internal
structure of sands, allowing quantitative measurements of internal features, including void …

Parallel Computation of Piecewise Linear Morse-Smale Segmentations

RGC Maack, J Lukasczyk, J Tierny… - … on Visualization and …, 2023 - ieeexplore.ieee.org
This article presents a well-scaling parallel algorithm for the computation of Morse-Smale
(MS) segmentations, including the region separators and region boundaries. The …

[HTML][HTML] Pore structure of grain-size fractal granular material

Y Liu, DS Jeng - Materials, 2019 - mdpi.com
Numerous studies have proven that natural particle-packed granular materials, such as soil
and rock, are consistent with the grain-size fractal rule. The majority of existing studies have …

Merging criteria for defining pores and constrictions in numerical packing of spheres

F Seblany, U Homberg, E Vincens, P Winkler… - Granular Matter, 2018 - Springer
The void space of granular materials is generally divided into larger local volumes denoted
as pores and throats connecting pores. The smallest section in a throat is usually denoted as …

[HTML][HTML] Sub-particle-scale investigation of seepage in sands

HF Taylor, C O'Sullivan, WW Sim, SJ Carr - Soils and Foundations, 2017 - Elsevier
While seepage poses significant challenges to many geotechnical projects and hydraulic
conductivity is a key soil property, the fundamental pore-scale understanding of the water …

Towards replacing physical testing of granular materials with a Topology-based Model

A Venkat, A Gyulassy, G Kosiba, A Maiti… - … on Visualization and …, 2021 - ieeexplore.ieee.org
In the study of packed granular materials, the performance of a sample (eg, the detonation of
a high-energy explosive) often correlates to measurements of a fluid flowing through it. The …

[PDF][PDF] Assessing the potential for suffusion in sands using x-ray micro-CT images

H Taylor - 2016 - core.ac.uk
Internal erosion is a major safety concern for embankment dams and flood embankments
and is the focus of much research internationally. Suffusion is a mechanism of internal …

Geometric and hydraulic void constrictions in granular media

HF Taylor, C O'sullivan, WW Sim - Journal of Geotechnical and …, 2016 - ascelibrary.org
Constrictions in the void space between soil particles govern hydraulic conductivity, internal
stability, and filtration performance of sands and gravels. Various analytical, numerical, and …

Probabilistic Gradient-Based Extrema Tracking

E Nilsson, J Lukasczyk, TB Masood… - … Data Analysis and …, 2023 - ieeexplore.ieee.org
Feature tracking is a common task in visualization applications, where methods based on
topological data analysis (TDA) have successfully been applied in the past for feature …