Modeling the Heat Sense Flowmeter
Publication: Journal of Irrigation and Drainage Engineering
Volume 124, Issue 3
Abstract
Real-time measurement of velocities in porous media is desirable for engineers engaged in ground-water remediation, monitoring projects, drainage studies, etc. This paper investigates the theory supporting the heat sense flowmeter and introduces a finite difference conduction-convection-dispersion model to convert instrument response to Darcy velocity. The model was tested under laboratory conditions and demonstrated good agreement with the empirical data. Results showed a noticeable attenuation of the heat pulse amplitude for high velocities. This suggests that for high velocities, correlating the Darcy velocity with amplitude gives more accurate readings than correlating Darcy velocity with time to peak.
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References
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Bejan, A. (1993). Heat transfer. John Wiley & Sons, Inc., New York, N.Y.
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Chapra, S. C., and Canale, R. P. (1985). Numerical methods for engineers. McGraw-Hill Book Co., Inc., New York, N.Y.
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Kaviany, M. (1991). Principles of heat transfer in porous media. Springer-Verlag, New York, N.Y.
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Kerfoot, W. B., and Massard, V. A.(1985). “Monitoring well screen influences on direct flowmeter measurements.”Ground water monitoring rev., 5(4), 74–77.
5.
Melville, J. G., Molz, F. J., and Guven, O.(1985). “Laboratory investigation and analysis of a ground water flowmeter.”Ground water., 23(4), 486–494.
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Sisodia, S. (1995). “Heat conduction-convection-dispersion model for the heat sensing flow meter,” MS thesis, Dept. of Civ. Engrg., The University of Memphis, Memphis, Tenn.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 124 • Issue 3 • May 1998
Pages: 148 - 151
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: May 1, 1998
Published in print: May 1998
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