Skip to main content
SpringerLink
Log in

An Improved Method for the Measurement of the Velocity Profiles in Liquids

  • Letter
  • Published:

From Nature

View current issue Submit your manuscript

Abstract

Birchoff and Cagwood1 have described a method for the measurement of velocity distributions in liquids using a sheet of equally spaced rising air bubbles. These are photographed against a dark background, with flash-tube illumination, using the light scattered from the air bubbles; two exposures are recorded on the same plate from two flashes at a known interval apart. Relf2 has used oil drops dispersed in water, illuminated by an arc lamp, to measure fluid velocity. The drops appear as bright points, and thus a time exposure enables the fluid velocity to be found.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Birchoff, G., and Cagwood, J. E., J. App. Phys., 20, 646 (1949).

    Article  ADS  Google Scholar 

  2. Relf, E. F., Advis. Comm. Aero., Reports and Memoranda No. 76 (1913).

  3. Goldstein, S., “Modern Developments in Fluid Dynamics”, 1, 304 (Oxf. Univ. Press, 1938).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physics Department, Durham Colleges, University of Durham,

    J. E. CAFFYN & R. M. UNDERWOOD

Authors
  1. J. E. CAFFYN
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. M. UNDERWOOD
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

CAFFYN, J., UNDERWOOD, R. An Improved Method for the Measurement of the Velocity Profiles in Liquids. Nature 169, 239–240 (1952). https://doi.org/10.1038/169239a0

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/169239a0

  • Springer Nature Limited

This article is cited by

Search

Navigation