scholarly journals Reduced-Order Model for Efficient Simulation of Synthetic Jet Actuators

AIAA Journal ◽  
2005 ◽  
Vol 43 (2) ◽  
pp. 357-369 ◽  
Author(s):  
N. K. Yamaleev ◽  
M. H. Carpenter ◽  
Frederick Ferguson
Keyword(s):  
Synthetic Jet ◽  
Reduced Order Model ◽  
Order Model ◽  
Reduced Order ◽  
Synthetic Jet Actuators ◽  
Efficient Simulation ◽  
Jet Actuators

scholarly journals Correction: Persoons, T.; Cressall, R.; Alimohammadi, S. Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data. Actuators 2018, 7, 67

Actuators ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 16
Author(s):  
Tim Persoons ◽  
Rick Cressall ◽  
Sajad Alimohammadi
Keyword(s):  
Experimental Data ◽  
Synthetic Jet ◽  
Reduced Order Model ◽  
Order Model ◽  
Reduced Order ◽  
Synthetic Jet Actuators ◽  
Jet Actuators

The authors wish to make the following corrections to this paper [...]

scholarly journals Validating a Reduced-Order Model for Synthetic Jet Actuators Using CFD and Experimental Data

Actuators ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 67 ◽  
Author(s):  
Tim Persoons ◽  
Rick Cressall ◽  
Sajad Alimohammadi
Keyword(s):  
Synthetic Jet ◽  
Operating Conditions ◽  
Reduced Order Model ◽  
Driving Voltage ◽  
Cavity Pressure ◽  
Order Model ◽  
Reduced Order ◽  
Synthetic Jet Actuators ◽  
Jet Actuators ◽  
Jet Velocity

Synthetic jet actuators (SJA) are emerging in various engineering applications, from flow separation and noise control in aviation to thermal management of electronics. A SJA oscillates a flexible membrane inside a cavity connected to a nozzle producing vortices. A complex interaction between the cavity pressure field and the driving electronics can make it difficult to predict performance. A reduced-order model (ROM) has been developed to predict the performance of SJAs. This paper applies this model to a canonical configuration with applications in flow control and electronics cooling, consisting of a single SJA with a rectangular orifice, emanating perpendicular to the surface. The practical implementation of the ROM to estimate the relationship between cavity pressure and jet velocity, jet velocity and diaphragm deflection and applied driving voltage is explained in detail. Unsteady Reynolds-averaged Navier Stokes computational fluid dynamics (CFD) simulations are used to assess the reliability of the reduced-order model. The CFD model itself has been validated with experimental measurements. The effect of orifice aspect ratio on the ROM parameters has been discussed. Findings indicate that the ROM is capable of predicting the SJA performance for a wide range of operating conditions (in terms of frequency and amplitude).

Bimorph-driven synthetic jet actuators optimized for various piezoelectric materials using a low-order model

2017 ◽  
Author(s):  
Tianliang Yu ◽  
George A. Lesieutre ◽  
Steven F. Griffin ◽  
Daniel P. Brzozowski ◽  
Aaron M. Sassoon
Keyword(s):  
Piezoelectric Materials ◽  
Synthetic Jet ◽  
Order Model ◽  
Synthetic Jet Actuators ◽  
Jet Actuators ◽  
Low Order

Reduced Order Nonlinear Navier Stokes Models for Synthetic Jets

1999 ◽  
Author(s):  
Othon K. Rediniotis ◽  
Andrew J. Kurdila
Keyword(s):  
Numerical Study ◽  
Control Strategies ◽  
Order Reduction ◽  
Synthetic Jet ◽  
Reduced Order Models ◽  
Loop Control ◽  
Reduced Order ◽  
Synthetic Jet Actuators ◽  
Jet Actuators ◽  
Reduction Methods

Abstract While the potential for the use of synthetic jet actuators to achieve flow control has been noted fro some tme, most studies of these devices have been empirical or experimental in nature. Several technical issues must be resolved to achieve rigorous, model-based, closed loop control methodologies for this class of actuator. The goal of this paper is consequently two-fold. First, we seek to derive and evaluate model order reduction methods based on proper orthogonal decomposition that are suitable for synthetic jet actuators. Secondly, we seek to derive rigorously stable feedback control laws for the derived reduced order models. The readability of the control strategies is discussed, and a numerical study of the effectiveness of the reduced order models are summarized.

Reduced Order Nonlinear Navier-Stokes Models for Synthetic Jets

2002 ◽  
Vol 124 (2) ◽  
pp. 433-443 ◽  
Author(s):  
Othon K. Rediniotis ◽  
Jeonghwan Ko ◽  
Andrew J. Kurdila
Keyword(s):  
Flow Control ◽  
Numerical Study ◽  
Control Strategies ◽  
Order Reduction ◽  
Synthetic Jet ◽  
Reduced Order Models ◽  
Loop Control ◽  
Reduced Order ◽  
Synthetic Jet Actuators ◽  
Jet Actuators

While the potential for the use of synthetic jet actuators to achieve flow control has been noted for some time, most of such flow control studies have been empirical or experimental in nature. Several technical issues must be resolved to achieve rigorous, model-based, closed-loop control methodologies for this class of actuators. The goal of this paper is consequently two-fold. First, we seek to derive and evaluate model order reduction methods based on proper orthogonal decomposition that are suitable for synthetic jet actuators. Second, we seek to derive rigorously stable feedback control laws for the derived reduced order models. The realizability of the control strategies is discussed, and a numerical study of the effectiveness of the reduced order models for two-dimensional flow near the jet exit is summarized.

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