Design of a single-crystal piezoceramic-driven synthetic-jet actuator

Razvan Rusovici, George A. Lesieutre

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Synthetic-jet actuators have been intensely studied recently. The interest in these devices is elicited by their usefulness in fluid-control applications, including boundary-layer control, combustion control etc. A synthetic-jet actuator is a zero-net-mass-flux device, and is comprised of a diaphragm mounted to enclose a volume of fluid in a cavity. The diaphragm bends sinusoidally, and fluid is periodically absorbed into and ejected from the cavity through an orifice. The outflow entrains the fluid around it and establishes a mean jet flow at a distance from the source. Piezoceramic materials have been used to drive the vibrating diaphragm, where the piezoceramic is glued directly to a silicon diaphragm. In combustion systems, improved turbulent mixing of air and fuel proper can significantly improve efficiency and reduce pollution. In boundary-layer separation control applications, synthetic-jets are used to improve aerodynamic performance by delaying separation and stall over the airfoil. The current work describes the modeling and design of a single-crystal piezoceramic-driven synthetic-jet actuator, and demonstrates that the efficiency of the actuator increases when single-crystals piezoceramic materials are used instead of the more conventional polycrystalline piezoceramics.

Original languageEnglish (US)
Pages (from-to)276-283
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5390
DOIs
StatePublished - Dec 17 2004
EventSmart Structures and Materials 2004 - Smart Structures and Integrated Systems - San Diego, CA, United States
Duration: Mar 15 2004Mar 18 2004

Fingerprint

Piezoceramics
diaphragms
Single Crystal
Actuator
Diaphragms
Actuators
actuators
Single crystals
fluids
single crystals
Fluid
Fluids
boundary layer control
Combustion
combustion control
Boundary Layer
Boundary layers
Cavity
boundary layer separation
cavities

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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Design of a single-crystal piezoceramic-driven synthetic-jet actuator. / Rusovici, Razvan; Lesieutre, George A.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5390, 17.12.2004, p. 276-283.

Research output: Contribution to journalConference article

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