A study of dilatation and acoustic propagation in solidifying fats and oils: I. Theoretical

  • M. J. W. Povey
Technical

Abstract

A theoretical relationship is presented relating acoustic velocity to dilatation in two-phase systems. The theory is based on studies of seismic propagation by Kuster and Toksöz, who include acoustic propagation in a fluid matrix containing spherical or spheroidal solid inclusions as a special case of their theory. The relationship presented in this paper applies in the long wavelength limit and predicts a linear relationship between acoustic dilatation and volume dilatation in crystallizing liquids, when the acoustic dilatation is much less than unity. I anticipate that this theory may lead to the application of acoustics in the assessment of a wide range of crystallizing systems such as oils.

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Copyright information

© the American Oil Chemists’ Society 1984

Authors and Affiliations

  • M. J. W. Povey
    • 1
  1. 1.Department of Food ScienceUniversity of LeedsLEEDSU.K.

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