Visualizing the Role of Particle Shape on 2D Inter-Particle Fluid Flow Using a Transparent Soil Surrogate

Linzhu Li, Mehdi Omidvar, Stephan Bless, Magued Iskander

Research output: Contribution to journalConference article

Abstract

Many geotechnical applications benefit from advanced analysis of flow through porous media, such as filter and drain design, internal erosion and piping, and liquefaction, among others. In this study, a novel method is presented to visualize key components of fluid flow through pores of a saturated synthetic transparent granular media representing natural sand. Images of sand particles were captured using a dynamic image analyzer. 3D printing was then used to produce 2D extruded scaled models of representative particles that were used as casts to produce transparent extruded particles made of polyacrylamide hydrogel. Planar (i.e., plane strain) models having controlled porosity were prepared. Steady-state flow was established through the soil model, from which high-resolution images were captured. Image analysis methods were then used to visualize the flow field in the interstitial fluid. In order to capture the fluid flow, the pore fluid was seeded with highly reflective silver-coated hollow micro-spheres. A laser light source was used to illuminate a plane within the model. Particle image velocimetry (PIV) was employed for visualizing inter-particle fluid flow fields. The method allowed for investigating soil-fluid interactions of scaled hydrogel Ottawa sand and angular sand.

Original languageEnglish (US)
Pages (from-to)618-627
Number of pages10
JournalGeotechnical Special Publication
Volume2019-March
Issue numberGSP 310
DOIs
StatePublished - Jan 1 2019
Event8th International Conference on Case Histories in Geotechnical Engineering: Geotechnical Materials, Modeling, and Testing, Geo-Congress 2019 - Philadelphia, United States
Duration: Mar 24 2019Mar 27 2019

Fingerprint

fluid flow
Flow of fluids
Sand
Soils
sand
Hydrogels
flow field
Fluids
fluid
Flow fields
soil
granular medium
plane strain
piping
Liquefaction
image resolution
Image resolution
Polyacrylates
liquefaction
image analysis

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

Visualizing the Role of Particle Shape on 2D Inter-Particle Fluid Flow Using a Transparent Soil Surrogate. / Li, Linzhu; Omidvar, Mehdi; Bless, Stephan; Iskander, Magued.

In: Geotechnical Special Publication, Vol. 2019-March, No. GSP 310, 01.01.2019, p. 618-627.

Research output: Contribution to journalConference article

Li, Linzhu ; Omidvar, Mehdi ; Bless, Stephan ; Iskander, Magued. / Visualizing the Role of Particle Shape on 2D Inter-Particle Fluid Flow Using a Transparent Soil Surrogate. In: Geotechnical Special Publication. 2019 ; Vol. 2019-March, No. GSP 310. pp. 618-627.
@article{489d90024d1b453b9c60521b00662207,
title = "Visualizing the Role of Particle Shape on 2D Inter-Particle Fluid Flow Using a Transparent Soil Surrogate",
abstract = "Many geotechnical applications benefit from advanced analysis of flow through porous media, such as filter and drain design, internal erosion and piping, and liquefaction, among others. In this study, a novel method is presented to visualize key components of fluid flow through pores of a saturated synthetic transparent granular media representing natural sand. Images of sand particles were captured using a dynamic image analyzer. 3D printing was then used to produce 2D extruded scaled models of representative particles that were used as casts to produce transparent extruded particles made of polyacrylamide hydrogel. Planar (i.e., plane strain) models having controlled porosity were prepared. Steady-state flow was established through the soil model, from which high-resolution images were captured. Image analysis methods were then used to visualize the flow field in the interstitial fluid. In order to capture the fluid flow, the pore fluid was seeded with highly reflective silver-coated hollow micro-spheres. A laser light source was used to illuminate a plane within the model. Particle image velocimetry (PIV) was employed for visualizing inter-particle fluid flow fields. The method allowed for investigating soil-fluid interactions of scaled hydrogel Ottawa sand and angular sand.",
author = "Linzhu Li and Mehdi Omidvar and Stephan Bless and Magued Iskander",
year = "2019",
month = "1",
day = "1",
doi = "10.1061/9780784482124.063",
language = "English (US)",
volume = "2019-March",
pages = "618--627",
journal = "Geotechnical Special Publication",
issn = "0895-0563",
publisher = "American Society of Civil Engineers (ASCE)",
number = "GSP 310",

}

TY - JOUR

T1 - Visualizing the Role of Particle Shape on 2D Inter-Particle Fluid Flow Using a Transparent Soil Surrogate

AU - Li, Linzhu

AU - Omidvar, Mehdi

AU - Bless, Stephan

AU - Iskander, Magued

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Many geotechnical applications benefit from advanced analysis of flow through porous media, such as filter and drain design, internal erosion and piping, and liquefaction, among others. In this study, a novel method is presented to visualize key components of fluid flow through pores of a saturated synthetic transparent granular media representing natural sand. Images of sand particles were captured using a dynamic image analyzer. 3D printing was then used to produce 2D extruded scaled models of representative particles that were used as casts to produce transparent extruded particles made of polyacrylamide hydrogel. Planar (i.e., plane strain) models having controlled porosity were prepared. Steady-state flow was established through the soil model, from which high-resolution images were captured. Image analysis methods were then used to visualize the flow field in the interstitial fluid. In order to capture the fluid flow, the pore fluid was seeded with highly reflective silver-coated hollow micro-spheres. A laser light source was used to illuminate a plane within the model. Particle image velocimetry (PIV) was employed for visualizing inter-particle fluid flow fields. The method allowed for investigating soil-fluid interactions of scaled hydrogel Ottawa sand and angular sand.

AB - Many geotechnical applications benefit from advanced analysis of flow through porous media, such as filter and drain design, internal erosion and piping, and liquefaction, among others. In this study, a novel method is presented to visualize key components of fluid flow through pores of a saturated synthetic transparent granular media representing natural sand. Images of sand particles were captured using a dynamic image analyzer. 3D printing was then used to produce 2D extruded scaled models of representative particles that were used as casts to produce transparent extruded particles made of polyacrylamide hydrogel. Planar (i.e., plane strain) models having controlled porosity were prepared. Steady-state flow was established through the soil model, from which high-resolution images were captured. Image analysis methods were then used to visualize the flow field in the interstitial fluid. In order to capture the fluid flow, the pore fluid was seeded with highly reflective silver-coated hollow micro-spheres. A laser light source was used to illuminate a plane within the model. Particle image velocimetry (PIV) was employed for visualizing inter-particle fluid flow fields. The method allowed for investigating soil-fluid interactions of scaled hydrogel Ottawa sand and angular sand.

UR - http://www.scopus.com/inward/record.url?scp=85063522485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063522485&partnerID=8YFLogxK

U2 - 10.1061/9780784482124.063

DO - 10.1061/9780784482124.063

M3 - Conference article

VL - 2019-March

SP - 618

EP - 627

JO - Geotechnical Special Publication

JF - Geotechnical Special Publication

SN - 0895-0563

IS - GSP 310

ER -