An Evaluation of the Hydrogen Bubble Technique for the Quantitative Determination of Fluid Velocities Within Clear Tubes

[+] Author and Article Information
W. Davis

University of Connecticut, Storrs, Conn.

R. W. Fox

Purdue University, Lafayette, Ind.

J. Basic Eng 89(4), 771-777 (Dec 01, 1967) (7 pages) doi:10.1115/1.3609701 History: Received July 27, 1966; Online November 03, 2011


The hydrogen bubble technique for flow visualization is modified for quantitative determination of velocity of water flowing in clear plastic tubes. Calibration tests are reported showing the accuracy which may be expected of the technique. The technique is verified by application to the determination of the hydrodynamic entrance length in steady flow.

Copyright © 1967 by ASME
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