Experiments in Fluids

, Volume 7, Issue 2, pp 99–102

A new method of producing local enhancement of buoyancy in liquid flows


  • G. S. Bhat
    • Indian Institute of Science
  • R. Narasimha
    • Indian Institute of Science
  • V. H. Arakeri
    • Indian Institute of Science

DOI: 10.1007/BF00207301

Cite this article as:
Bhat, G.S., Narasimha, R. & Arakeri, V.H. Experiments in Fluids (1989) 7: 99. doi:10.1007/BF00207301


We describe here a novel method of generating large volumetric heating in a liquid. The method uses the principle of ohmic heating of the liquid, rendered electrically conducting by suitable additives if necessary. Electrolysis is prevented by the use of high frequency alternating voltage and chemically treated electrodes. The technique is demonstrated by producing substantial heating in an initially neutral jet of water. Simple flow visualisation studies, made by adding dye to the jet, show marked changes in the growth and development of the jet with heat addition.

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© Springer-Verlag 1989