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Showing 1 to 18 of 18 for “"synthetic jet actuators"”.

  1. Robust Nonlinear Estimation and Control Applications using Synthetic Jet Actuators

    Pedroza, Natalie Ramos2022

    … of an aircraft wing. To address this, the use of synthetic jet actuators (SJAs) in UAV flight control systems is becoming popular as a practical alternative and to mechanical deflection surfaces.</p> <p>Synthetic jet actuators are promising tools for LCO suppression systems in small UAVs due to …

    embry-riddle Repository record

  2. Quantitative Acetone PLIF Measurements of Jet Mixing with Synthetic Jet Actuators

    Ritchie, Brian DouglasGeorgia Institute of Technology2006

    Fuel-air mixing enhancement in axisymmetric jets using an array of synthetic jet actuators around the perimeter of the flows (primarily parallel to the flow axis) was investigated using planar laser-induced fluorescence of acetone. The synthetic jets are a promising new mixing control and …

    gatech Repository record

  3. Experimental Investigation of Active Wingtip Vortex Control Using Synthetic Jet Actuators

    Sudak, Peter J2014

    … wind tunnel to quantify the effect of spanwise synthetic jet actuation (SJA) on the drag of a NACA 0015 semispan wing. The wing, which was designed and manufactured for this experiment, has an aspect ratio of 4.20, a span of 0.427 m (16.813”), and is built around an internal array of …

    calpoly Repository record

  4. Adaptive and Neural Network-Based Aircraft Tracking Control with Synthetic Jet Actuators

    Teramae, Joshua

    <p>Wing-embedded synthetic jet actuators (SJA) can be used to achieve maneuvering control in aircraft by delivering controllable airflow perturbations near the wing surface. Trajectory tracking control design for aircraft equipped with SJA is particularly challenging, since the controlling actuator …

    embry-riddle Repository record

  5. An Experimental Study of Synthetic Jet Actuators with Application in Airfoil LCO Control

    Krishnappa, Sanjay

    … study on the development and implementation of Synthetic Jet Actuators (SJAs) is conducted for eliminating aeroelastic phenomenon such as Limit Cycle Oscillations (LCO). One of the biggest challenges involved in the design of UAVs operating in unsteady atmosphere conditions is the susceptibility …

    embry-riddle Repository record

  6. Robust and Adaptive Nonlinear Control of Limit Cycle Oscillations in UAVs Using Synthetic Jet Actuators

    Pedroza, Natalie Ramos2022

    … UAV systems that do not require heavy mechanical actuators (e.g., ailerons). To address this, the use of synthetic jet actuators (SJAs) in UAV fight control systems is becoming popular as a practical alternative to mechanical deflection surfaces. SJAs are promising tools for LCO suppression …

    embry-riddle Repository record

  7. Local-and system-level thermal management of a single level integrated module (SLIM) using synthetic jet actuators

    Russell, Griffith B.Georgia Institute of Technology1999

    gatech Repository record

  8. The manipulation of large- and small-scale flow structures in single and coaxial jets using synthetic jet actuators

    Davis, Staci AnnGeorgia Institute of Technology2000

    gatech Repository record

  9. Numerical Modeling of Anti-Icing Using an Array of Heated Synthetic Jets

    Nagappan, Nikisha Maria

    … control using an array of thermally activated synthetic jet actuators (SJAs) embedded in a wedge surface subject to a super-cooled flow is investigated numerically. The effects of SJA actuation with and without jet heating on ice accretion are studied using the FENSAP-ICE software. It is shown …

    embry-riddle Repository record

  10. RESONANCE BASED LOW FREQUENCY SYNTHETIC JET ACTUATOR MODELING, DESIGN, AND TESING

    Gravatt, Lynn Marie2006

    Synthetic Jet Actuators have been the topic of extensive study in the aerospace industry because of their ability to actively control flow over aerodynamic surfaces without discrete control surfaces such as a flap. One challenge has been to develop a low frequency, lightweight actuator that can …

    maryland Repository record

  11. Numerical Study of Synthetic-Jet Actuation Effect on Airfoil Trailing Edge Noise

    Sansone, Marco

    … to assess the possibility of employing Synthetic Jet Actuators (SJAs) as active noise control devices for reduction of airfoil acoustic radiation. High-accuracy numerical efforts employ a sixth-order accurate Navier-Strokes solver implementing a low-pass filtering of poorly resolved …

    embry-riddle Repository record

  12. Flow Separation Control Using Synthetic Jets on a Flat Plate

    Saambavi, Karunakaran

    … goal of this thesis is to assess the effect of synthetic jets on flow separation. CFD simulation is conducted for laminar flow over a flat plate using the commercial software ANSYS FLUENT. The oscillating zero mass jet flow is simulated by imposing a harmonically varying boundary condition on …

    embry-riddle Repository record

  13. Investigation of Scaling Effects for a Synthetic Jet Actuator Using High and Low Fidelity Analyses

    Bourlier, Amandine

    … an investigation on the scaling effects for synthetic jet actuators using Ansys-CFX and a Lumped Element Model (LEM). Synthetic jets or zero net mass-flux devices use a vibrating diaphragm to generate an oscillatory flow through a small orifice. A synthetic jet actuator can be used on MAVs as …

    embry-riddle Repository record

  14. Dynamic control of aerodynamic forces on a moving platform using active flow control

    Brzozowski, Daniel PaulGeorgia Institute of Technology2011

    … the trailing edge of the airfoil using hybrid synthetic jet actuators. The dynamic coupling between the actuation and the time-dependent flow field is characterized using simultaneous force and particle image velocimetry (PIV) measurements that are taken phase-locked to the commanded actuation …

    gatech Repository record

  15. Numerical Study in Wind Energy Extraction from Controlled Limit-Cycle Oscillations in Modified Glauert Airfoil

    Deweese, Ethan L

    … (LCO) from which energy may be extracted. Synthetic jet actuators (SJA)s are used along with the unique geometry of the MG airfoil to control flow separation and amplify the LCO and energy generation potential of the system. The discussed wind energy harvesting scheme could provide …

    embry-riddle Repository record

  16. Ducted Fan Aerodynamics and Modeling, with Applications of Steady and Synthetic Jet Flow Control

    Ohanian, Osgar JohnVirginia Tech2011

    … active flow control. Steady and piezoelectric synthetic jet blowing are employed in the flow control concepts and are compared. The new aerodynamic model captures the nonlinear characteristics of the force, moment, and power data for a ducted fan, while representing these terms in a set of …

    vt Repository record

  17. Numerical Simulations of Flow past a Triangular Airfoil and in a Sweeping Jet Actuator Using Different Turbulence Models

    Yang, Han2019

    … used for a Mars air vehicle and in a sweeping jet actuator used for active flow control. Simulations are performed using the commercial CFD software ANSYS Fluent.</p> <p>The thesis consists of two parts. The first part of the thesis deals with the CFD simulations of a triangular airfoil in …

    wustl Repository record

  18. Design of Synthetic Jet Actuator for Flight Control of Small UAV

    Pagadala, Priyanka

    … of this project is to develop a prototype SJA - Synthetic Jet Actuator to embed into a small UAV with modified Glauert wing cross-section for Active Flow Control. Apart from lift enhancement, drag reduction, or separation control, etc; LCO suppression might be possible by modifying the boundary …

    embry-riddle Repository record