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Ultrasonically Driven Cavitating Atomizer: Prototype Fabrication and Characterization

[+] Author Affiliations
Nelson K. Akafuah, Abraham J. Salazar, Kozo Saito

University of Kentucky, Lexington, KY

Vedanth Srinivasan

AVL Powertrain Engineering, Plymouth, MI

Paper No. FEDSM2009-78024, pp. 321-326; 6 pages
  • ASME 2009 Fluids Engineering Division Summer Meeting
  • Volume 2: Fora
  • Vail, Colorado, USA, August 2–6, 2009
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4373-4 | eISBN: 978-0-7918-3855-6
  • Copyright © 2009 by ASME


A new device, ultrasonic cavitating atomizer (UCA), has been developed that uses ultrasonically driven cavitation to produce fine droplets. In the UCA the role of cavitation is explicitly configured to enhance the breakup of the liquid jet exiting the nozzle into fine droplets; the pressure modulation also assists the breakup process. The experimental study involves the fabrication of a prototype and the building of an experimental rig to test the prototype using water as the working fluid. The parameters tested include liquid injection pressure, horn tip frequency and liquid flow rate. The result shows improvement in the atomization of water with the application of ultrasonic cavitation.

Copyright © 2009 by ASME



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