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Physica A 303 (2002) 1326 www.elsevier.com/locate/physa
 

Summary: Physica A 303 (2002) 13­26
www.elsevier.com/locate/physa
Salt ˙ngers in double-di usive systems
A. Sorkin, V. Sorkin
, I. Leizerson
Department of Physics, Technion Institute of Technology, Haifa 32000, Israel
Received 6 April 2001
Abstract
"Salt ˙ngering", the phenomenon of the double-di usive convection has been studied exper-
imentally. We prepared a system with vertical density variation, which contains salt and sugar
solutions, separated one from the other. The "salt ˙ngers" appear at the interface between these
layers of salt and sugar solutions. The "salt ˙ngers" have been observed by means of shadow-
graph technique.
With the aid of a computer and the video-capture technique, it was possible for the ˙rst time
to conduct a detailed investigation of the phenomenon. The geometric characteristics of the "salt
˙ngers" such as form, length and width have been investigated.
The way in which these quantities depend on the salinity and sugar concentrations, as well as
the thickness of the salt and sugar layers has been veri˙ed experimentally. We also veri˙ed the
predicted form of dependence of the average "salt ˙ngers" width on its vertical length. c 2002
Elsevier Science B.V. All rights reserved.

  

Source: Adler, Joan - Physics Department, Technion, Israel Institute of Technology

 

Collections: Physics