An overview of active flow control actuators and applications (presentation video)

Daniel Brzozowski; Edward A. Whalen

doi:10.1117/12.2049570

9 May 2014 An overview of active flow control actuators and applications (presentation video)

Daniel Brzozowski, Edward A. Whalen

Proceedings Volume 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014; 905904 (2014) https://doi.org/10.1117/12.2049570
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Active Flow Control (AFC) is an emerging technology which promises performance enhancements to both military and civilian aircraft. A technique which uses energy input at discrete locations to manipulate the flow over an aerodynamic surface, AFC may be used to reduce drag, prevent flow separation, and enable otherwise-infeasible aerodynamic designs. Additional applications include shear layer and turbulence control for aero-optics applications and mixing enhancement for thermal applications. Many AFC applications call for a high frequency fluidic perturbation provided by an electrically-powered actuator. In these instances, piezoelectric (PZT) materials have served as the workhorse for flow control actuators, such as the widely-studied synthetic jet. Because the PZT materials form the critical component of the actuator, the maximum performance of the synthetic jet (velocity and momentum output) is limited by the physical limitations of the PZT material. The purpose of this presentation is to provide a high level overview of AFC actuators and applications in an attempt to engage the smart materials community and encourage advanced material development in support of these crucial applications.

Citation Download Citation

Daniel Brzozowski and Edward A. Whalen "An overview of active flow control actuators and applications (presentation video)", Proc. SPIE 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014, 905904 (9 May 2014); https://doi.org/10.1117/12.2049570

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KEYWORDS

Actuators

Ferroelectric materials

Video

Aerodynamics

Smart materials

Turbulence

Current controlled current source

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