The effect of displacement distribution asymmetry on the accuracy of phase-shift velocimetry in porous media

Antoine Vallatos, Matsyendra Nath Shukla, James M. Mullin, Vernon R. Phoenix, William M. Holmes

Research output: Contribution to journalArticle

Abstract

Characterising fluid flow within porous media is of great importance for a wide range of research fields ranging from chemical engineering to geology. Accurate velocimetry can be crucial in understanding transport processes and developing models. The ability to probe flow properties in opaque systems makes MRI velocimetry based on the use of pulsed magnetic field gradients (PFG) a precious tool for the characterisation of flow in porous media. There are two main methods of PFG velocimetry, propagator velocimetry and phase-shift velocimetry. Propagator velocimetry requires several gradient encoding steps to resolve the probability distribution of displacements for each voxel. Phase-shift velocimetry is faster, requiring only two gradient encoding steps to measure the average voxel velocity.
LanguageEnglish
Number of pages8
JournalMicroporous and Mesoporous Materials
Publication statusAccepted/In press - 28 Nov 2017

Fingerprint

Phase shift
Velocity measurement
Porous materials
phase shift
asymmetry
gradients
coding
chemical engineering
propagation
geology
magnetic fields
fluid flow
Magnetic fields
Chemical engineering
Geology
probes
Magnetic resonance imaging
Probability distributions
Flow of fluids

Keywords

  • fluid flow
  • porous media
  • velocimetry
  • pulsed magnetic field gradients (PFG)
  • propagator velocimetry
  • phase-shift velocimetry

Cite this

@article{f59696d86e204e3caca8acb005d91dc2,
title = "The effect of displacement distribution asymmetry on the accuracy of phase-shift velocimetry in porous media",
abstract = "Characterising fluid flow within porous media is of great importance for a wide range of research fields ranging from chemical engineering to geology. Accurate velocimetry can be crucial in understanding transport processes and developing models. The ability to probe flow properties in opaque systems makes MRI velocimetry based on the use of pulsed magnetic field gradients (PFG) a precious tool for the characterisation of flow in porous media. There are two main methods of PFG velocimetry, propagator velocimetry and phase-shift velocimetry. Propagator velocimetry requires several gradient encoding steps to resolve the probability distribution of displacements for each voxel. Phase-shift velocimetry is faster, requiring only two gradient encoding steps to measure the average voxel velocity.",
keywords = "fluid flow, porous media, velocimetry, pulsed magnetic field gradients (PFG), propagator velocimetry, phase-shift velocimetry",
author = "Antoine Vallatos and {Nath Shukla}, Matsyendra and Mullin, {James M.} and Phoenix, {Vernon R.} and Holmes, {William M.}",
year = "2017",
month = "11",
day = "28",
language = "English",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",

}

The effect of displacement distribution asymmetry on the accuracy of phase-shift velocimetry in porous media. / Vallatos, Antoine; Nath Shukla, Matsyendra; Mullin, James M.; Phoenix, Vernon R.; Holmes, William M.

In: Microporous and Mesoporous Materials, 28.11.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of displacement distribution asymmetry on the accuracy of phase-shift velocimetry in porous media

AU - Vallatos, Antoine

AU - Nath Shukla, Matsyendra

AU - Mullin, James M.

AU - Phoenix, Vernon R.

AU - Holmes, William M.

PY - 2017/11/28

Y1 - 2017/11/28

N2 - Characterising fluid flow within porous media is of great importance for a wide range of research fields ranging from chemical engineering to geology. Accurate velocimetry can be crucial in understanding transport processes and developing models. The ability to probe flow properties in opaque systems makes MRI velocimetry based on the use of pulsed magnetic field gradients (PFG) a precious tool for the characterisation of flow in porous media. There are two main methods of PFG velocimetry, propagator velocimetry and phase-shift velocimetry. Propagator velocimetry requires several gradient encoding steps to resolve the probability distribution of displacements for each voxel. Phase-shift velocimetry is faster, requiring only two gradient encoding steps to measure the average voxel velocity.

AB - Characterising fluid flow within porous media is of great importance for a wide range of research fields ranging from chemical engineering to geology. Accurate velocimetry can be crucial in understanding transport processes and developing models. The ability to probe flow properties in opaque systems makes MRI velocimetry based on the use of pulsed magnetic field gradients (PFG) a precious tool for the characterisation of flow in porous media. There are two main methods of PFG velocimetry, propagator velocimetry and phase-shift velocimetry. Propagator velocimetry requires several gradient encoding steps to resolve the probability distribution of displacements for each voxel. Phase-shift velocimetry is faster, requiring only two gradient encoding steps to measure the average voxel velocity.

KW - fluid flow

KW - porous media

KW - velocimetry

KW - pulsed magnetic field gradients (PFG)

KW - propagator velocimetry

KW - phase-shift velocimetry

UR - https://www.journals.elsevier.com/microporous-and-mesoporous-materials

M3 - Article

JO - Microporous and Mesoporous Materials

T2 - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

ER -