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Updated: May 24, 2026

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

Tomographic multiphase flow measurement.

C Sætre¹, G A Johansen, S A Tjugum

¹Department of Physics and Technology, University of Bergen, Norway. camilla@ift.uib.no

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|February 21, 2012

Summary

This summary is machine-generated.

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This study uses multi gamma beam (MGB) measurements to identify flow regimes and improve multiphase flow meter accuracy. The methods reduce uncertainties from flow variations and enhance long-term stability for gas, oil, and water measurements.

Area of Science:

Petroleum Engineering
Nuclear Instrumentation
Fluid Dynamics

Background:

Multiphase flow measurement presents significant challenges, including flow regime variations and long-term stability.
Existing multiphase flow meters require improved calibration, adjustment, and verification methods.

Purpose of the Study:

To address uncertainties in multiphase flow measurement caused by flow regime variations.
To enhance the long-term stability of multiphase flow meters.
To utilize multi gamma beam (MGB) and gamma-ray tomography for flow regime identification and gas/liquid distribution.

Main Methods:

Employed a multi gamma beam (MGB) system with an Americium-241 (Am-241) source and two detectors for flow regime identification.
Utilized gamma-ray tomographic measurements for reference gas/liquid distribution.

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Last Updated: May 24, 2026

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Published on: April 30, 2018

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

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Incorporated Compton scattering measurements to assess water salinity in specific flow conditions.

Measured transmitted intensity in short time slots (<100 ms) to capture rapid regime variations.

Main Results:

Successfully identified flow patterns by comparing detector intensities from the MGB setup.
Demonstrated the capability to determine gas/liquid distribution using gamma-ray tomography.
Showcased Compton scattering's utility for salinity measurements in high water-liquid ratio, low gas fraction scenarios.
Validated the use of short time-slot measurements for revealing rapid flow regime changes.

Conclusions:

The developed MGB method effectively identifies flow regimes, reducing measurement uncertainties.
The combined techniques offer enhanced accuracy and stability for multiphase flow metering.
The approach provides valuable data for optimizing multiphase flow measurement and management.