An X-ray system for visualizing fluid flows
- 19 September 2007
- journal article
- research article
- Published by Elsevier BV in Flow Measurement and Instrumentation
- Vol. 19 (2), 67-78
- https://doi.org/10.1016/j.flowmeasinst.2007.09.003
Abstract
A unique flow visualization facility, based on X-ray imaging, has been developed to study, characterize, and measure various flow characteristics in large vertical systems that have internal diameters of up to 32 cm and are as tall as 4 m. This facility provides digital X-ray radiography and stereography imaging to visualize and time-resolve 3D flow structures in multiphase and opaque fluid flows at up to 60 frames/s. In addition, X-ray computed tomography (CT) imaging records local time-averaged phase distributions in multiphase flows with a spatial resolution of less than 0.5 mm (∼0.15% of a 32-cm-diameter object). The X-ray hardware and image processing software for this facility are described. Selected imaging results are then presented for various single and multiphase fluid flows.Keywords
This publication has 50 references indexed in Scilit:
- Phase Distribution in a High Pressure Slurry Bubble Column via a Single Source Computed TomographyThe Canadian Journal of Chemical Engineering, 2008
- Quantitative measurement of solids distribution in gas–solid riser flows using electrical impedance tomography and gamma densitometry tomographyInternational Journal of Multiphase Flow, 2006
- Flow regime transition pointers in three-phase fluidized beds inferred from a solid tracer trajectoryChemical Engineering and Processing - Process Intensification, 2006
- Characterization of the hydrodynamic flow regime in bubble columns via computed tomographyFlow Measurement and Instrumentation, 2005
- Tomography for multi-phase flow measurement in the oil industryFlow Measurement and Instrumentation, 2005
- Electrical capacitance tomography for conventional fluidized bed measurements—remarks on the measuring techniquePowder Technology, 2004
- Determination of bubble diameter and axial velocity for a polyethylene fluidized bed using X-ray fluoroscopyPowder Technology, 2004
- Liquid holdup distribution in packed columns: gamma ray tomography and CFD simulationChemical Engineering and Processing - Process Intensification, 2002
- Validation of electrical-impedance tomography for measurements of material distribution in two-phase flowsInternational Journal of Multiphase Flow, 2000
- Three-dimensional flaw reconstruction and dimensional analysis using a real-time X-ray imaging systemNDT & E International, 1993