Download Power Ultrasonics: Applications of High-Intensity Ultrasound by Juan A Gallego-Juárez, Karl F Graff PDF

By Juan A Gallego-Juárez, Karl F Graff

The economic curiosity in ultrasonic processing has revived in the course of contemporary years simply because ultrasonic know-how may well symbolize a versatile “green” replacement for extra power effective methods. A problem within the software of high-intensity ultrasound to commercial processing is the layout and improvement of particular strength ultrasonic platforms for big scale operation. within the region of ultrasonic processing in fluid and multiphase media the improvement of a brand new family members of energy turbines with wide radiating surfaces has considerably contributed to the implementation at business scale of numerous functions in sectors corresponding to the nutrients undefined, atmosphere, and production. half one covers basics of nonlinear propagation of ultrasonic waves in fluids and solids. It additionally discusses the fabrics and designs of strength ultrasonic transducers and units. half seems at functions of excessive strength ultrasound in fabrics engineering and mechanical engineering, foodstuff processing expertise, environmental tracking and remediation and commercial and chemical processing (including pharmaceuticals), drugs and biotechnology.

  • Covers the basics of nonlinear propagation of ultrasonic waves in fluids and solids.
  • Discusses the fabrics and designs of energy ultrasonic transducers and units.
  • Considers state of the art energy sonic functions throughout a variety of industries.

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Extra resources for Power Ultrasonics: Applications of High-Intensity Ultrasound

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2011. Simulation of three-dimensional nonlinear fields of ultrasound therapeutic arrays. Acoust. Phys. 57 (3), 334–343. 1134/ S1063771011030213. , 1966. Introduction into Nonlinear Acoustics. Nauka, Moscow (in Russian). Acoustic cavitation: bubble dynamics in high-power ultrasonic fields 3 W. Lauterborn, R. 1 Introduction Acoustic cavitation describes the phenomena associated with intense sound waves in liquids generating cavitation bubbles. The main physical phenomena connected with the dynamics of cavitation bubbles are broadband acoustic emissions (noise and shock waves), high-speed liquid jet formation, and generation of high temperatures inside the bubbles accompanied by plasma formation and light emission (sonoluminescence).

58 (1), 81–89. 1134/S1063771011060078. , 2000. Nonlinear distortion and attenuation of intense acoustic waves in lossy media obeying a frequency power law. Acoust. Phys. 46 (2), 170–177. , 1933. On the acoustic radiation pressure on spheres. Proc. R. Soc. Lond. Ser. A 147, 212–240. 0215. , 2013. Characterization of a multi-element clinical HIFU system using acoustic holography and nonlinear modeling. IEEE Trans. Ultrason. Ferroelectr. Freq. Control 60 (8), 1683–1698. 2750. , 1987. Fluid Mechanics, second ed.

Nevertheless, some care must be observed when comparing threshold values, because the literature from the early days of cavitation measurements gives “effective” pressures; that is, some mean value of the pressure amplitude in the sound wave (Esche, 1952). , 2006). , 2006; Strasberg, 1959). To avoid cavitation at the walls of the container, either the sound waves are focused into the interior of the liquid (Esche, 1952) or standing waves are used with the maximum sound pressure amplitude located in the interior of the container (Galloway, 1954; Greenspan and Tschiegg, 1967).

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