The Effect of Ultrasonic Waves on Oil Viscosity

H. Hamidi, E. Mohammadian, R. Junin, R. Rafati, A. Azdarpour, M. Junid, R. M. Savory

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


This study presents the development of a technique to directly investigate the effect of ultrasonic waves at 25 and 68 kHz and 100, 250, and 500 W on the viscosity of paraffin, synthetic oil, and kerosene. Experiments were performed under both controlled and uncontrolled temperature conditions in a smooth capillary tube. The results indicate that the viscosity of the liquids decreases upon exposure to ultrasound and may be attributed to induced heat generation and cavitation within the fluid. The specifics of ultrasound frequency, power, and temperature on viscosity reduction are discussed and interpreted.
Original languageEnglish
Pages (from-to)2387-2395
Number of pages9
Journalpetroleum science and technology
Issue number19
Early online date24 Jul 2014
Publication statusPublished - 2014


  • ultrasound
  • viscosity
  • smooth capillary tube
  • frequency
  • power


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