Lumped Element Modeling of Piezoelectric-Driven Synthetic Jet Actuators

Abstract

This paper presents a lumped element model of a piezoelectric-driven synthetic jet actuator. A synthetic jet, also known as a zero net mass-flux device, uses a vibrating diaphragm to generate an oscillatory flow through a small orifice or slot. In lumped element modeling (LEM), the individual components of a synthetic jet are modeled as elements of an equivalent electrical circuit using conjugate power variables. The frequency response function of the circuit is derived to obtain an expression for Q(sub out)/V(sub AC), the volume flow rate per applied voltage. The circuit is analyzed to provide physical insight into the dependence of the device behavior on geometry and material properties. Methods to estimate the model parameters are discussed, and experimental verification is presented. In addition, the model is used to estimate the performance of two prototypical synthetic jets, and the results are compared with experiment.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA466402

Entities

People

  • Anurag Kasyap
  • Bruce Carroll
  • Jose Mathew
  • Louis N Cattafesta
  • Mark Sheplak
  • Quentin Gallas
  • Ryan Holman
  • Toshikazu Nishida

Organizations

  • University of Florida

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Resistance
  • Actuators
  • Boundary Layer
  • Ceramic Materials
  • Computational Fluid Dynamics
  • Dielectric Permittivity
  • Differential Equations
  • Dynamic Response
  • Equivalent Circuits
  • Flow Rate
  • Fluid Dynamics
  • Fluid Mechanics
  • Frequency
  • Partial Differential Equations
  • Poiseuille Flow
  • Resonant Frequency

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Electrical Engineering
  • Petroleum Engineering