Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 2 June 1967:
Vol. 156. no. 3779, pp. 1220 - 1222
DOI: 10.1126/science.156.3779.1220
Prev | Table of Contents | Next

Articles

Efflux Time of Soap Bubbles and Liquid Spheres

A. V. Grosse 1

1 Research Institute of Temple University, Philadelphia, Pennsylvania

The efflux time, T, of gas from soap bubbles of radius, R, through their blow tube of length, 1, and radius, p, is given by the equation

see pdf for equation

where eegr is the viscosity of the gas and oacgr the surface tension of the bubble solution, all in centimeter-gram-second units. Similar relations between time and diameter were established for the flow from one bubble to another or from one bubble within another. The same relations hold for the flow of liquid spheres, suspended in another liquid of equal density, following Plateau's classic method. They have been extended to the flow of spheres to cylinders and catenoids of rotation. In all these cases the driving force is the surface or interfacial tension, creating an excess pressure as defined by Laplace's equation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Soap Bubbles: Two Years Old and Sixty Centimeters in Diameter.
A. V. Grosse (1969)
Science 164, 291-293
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)