Abstract
LONDON. Physical Society, Nov. 7.—W. N. Bond: Turbulent flow through tubes. The experimental methods included (a) an aural method; (b) photography of the motion of a deflected vane; and (c) injection of colour-streams about half-way along the tube. Intermittent turbulence was investigated at speeds near the critical speed, and measurements of the critical speed were made. The velocity parallel to the tube-axis is sometimes almost uniform momentarily over the transverse section. No trace was found of a simple frequency, but evidence was obtained of a predominant wave-length in the turbulent motion at the critical speed. Both these observations seem to agree with the approximate theory given by Heisen-berg for flow between a pair of parallel planes.
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Societies and Academies. Nature 126, 977–978 (1930). https://doi.org/10.1038/126977a0
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DOI: https://doi.org/10.1038/126977a0