Properties of ultrasonic propagation in functional fluids under magnetic fields

M. Motozawa, T. Sawada, Y. Matsumoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The properties of ultrasonic propagation velocity in water-based and kerosene-based magnetic fluids and an MR fluid are examined experimentally. The ultrasonic frequency used is 1 MHz and the measurement scheme is based on the pulse method. The external magnetic field intensity is vaned from 0 mT to 550 mT and is swept at a constant rate dB /dt (sweep rate). The ultrasonic propagation velocity changes with applied magnetic field and hysteresis is observed. The properties of ultrasonic propagation seem to be highly influenced by the formation of chain-like clusters (in the magnetic fluids) and robust clusters (in the MR fluid).

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions
Pages248-255
Number of pages8
Publication statusPublished - 2007 Dec 1
Event10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2006 - Lake Tahoe, NV, United States
Duration: 2006 Jun 182006 Jun 22

Publication series

NameProceedings of the 10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions

Other

Other10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2006
CountryUnited States
CityLake Tahoe, NV
Period06/6/1806/6/22

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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  • Cite this

    Motozawa, M., Sawada, T., & Matsumoto, Y. (2007). Properties of ultrasonic propagation in functional fluids under magnetic fields. In Proceedings of the 10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions (pp. 248-255). (Proceedings of the 10th International Conference on Electrorheological Fluids and Magnetorheological Suspensions).