Abstract
A new NMR flow measurement method has been developed, which is applicable over a wide range of velocities and flow conditions (velocity range at present 0.3 to 100 m/s; applicable at laminar, turbulent, plug flow etc.). It is particularly well suited for highly turbulent flow. It uses the efflux of nuclear spins out of the NMR RF coil. The efflux curve, thus obtained is analysed in terms of a distribution of velocities, the respective amplitudes of which form the velocity probability distribution function. The mass flow of different phases in the flow pattern can be obtained, provided they possess different average velocities.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Abragam, A., 1962, The Principles of Nuclear Magnetism, 2nd edition, Oxford University Press
Battocletti, J. H., Linehan, J. H., Larson, S. J., Sances, Jr.,A., Bowman, R. L., Kudracev, V., Genthe, W. K., Halbach, R. E. and Evans. S. M., 1972, Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow, IEEE Trans.Bio.-Med. Eng., Vol. 19, 403–407
Garroway, A. N., 1974, Velocity measurements in flowing fluids by NMR, J. Phys D. Vol. 7, L159 - L163
Genthe, W. K., Vander Heyden, W. R., Battocletti, J. H., McCormick, W. S. and Snowball, H. M., 1968, NMR Applied to Flow Measurement, Instrum. Technol. Vol. 15, 53–58
Jones, D. W., and Child T. F., 1976, NMR in Flowing Systems, Adv. Mag. Res. Vol. 8, 123–148
Kruger, G. J., 1980, Coil for the Production of Homogeneous Magnetic Fields, U.S.Patent 4,231, 008
Meiboom, S., and Gill, D., 1958, Modified Spin-Echo Method for Measuring Nuclear Relaxation Times, Rev. Sci. Instr., Vol. 29, 688–691
Packer, K. J., Tomlinson, D. J., and Rees, C., 1972, Studies of Diffusion and Flow by Pulsed NMR Techniques, Advan. Mol. Relaxation Processes Vol. 3, 119–131
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1984 Springer-Verlag Berlin, Heidelberg
About this paper
Cite this paper
Krüger, G.J., Haupt, J., Weiss, R. (1984). A Nuclear Magnetic Resonance Method for the Investigation of Two-Phase Flow. In: Delhaye, J.M., Cognet, G. (eds) Measuring Techniques in Gas-Liquid Two-Phase Flows. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82112-7_22
Download citation
DOI: https://doi.org/10.1007/978-3-642-82112-7_22
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-82114-1
Online ISBN: 978-3-642-82112-7
eBook Packages: Springer Book Archive