Numerical Modeling of Synthetic Jets with Cross Flow in a Boundary Layer at an Adverse Pressure Gradient

Lesbros, Samuel; Nationale, Ecole; Ozawa, T.; Hong, Guang

doi:10.2514/6.2006-3690

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…Modeling the diaphragm as a moving wall with a profile defined by an equation has also been achieved with some success [19]. Some researchers have omitted the cavity and nozzle to simplify computations and focus on the exterior flow [48][49][50]. Some researchers have employed a more realistic multiphysics approach incorporating piezoelectricity and structural mechanics [27][28][29][30].…”

Section: Diaphragmmentioning

confidence: 99%

Multiphysics Modeling of a Synthetic Jet Actuator in Operation

Butler,

Ekmekci,

Sullivan

2024

Actuators

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Active flow control is a promising technology for reducing noise, emissions, and power consumption in various applications. To better understand the performance of synthetic jet actuators, a computational model that couples structural mechanics with electrostatics, pressure acoustics, and fluid dynamics is needed. The model presented here was validated against experimental data and then used to investigate the fluid behavior inside and outside the synthetic jet actuator cavity, the impacts of thermoviscous losses on capturing the acoustic response of the actuator, and the viability of different modeling methods of diaphragms in computational simulations. The results capture the feedback from the fluid onto the diaphragm and highlight the need for careful acoustic modeling.

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Section: Diaphragmmentioning

confidence: 99%

Multiphysics Modeling of a Synthetic Jet Actuator in Operation

Butler,

Ekmekci,

Sullivan

2024

Actuators

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show abstract

Section: Diaphragmmentioning

confidence: 99%

Multiphysics Modeling of a Synthetic Jet Actuator in Operation

Butler,

Ekmekci,

Sullivan

2023

Preprint

View full text Add to dashboard Cite

Active flow control is a promising technology for reducing noise, emissions, and power consumption in various applications. To better understand the performance of synthetic jet actuators, a computational model that couples structural mechanics with electrostatics, pressure acoustics, and fluid dynamics has been needed. The model presented here has been validated against experimental data and then used to investigate the fluid behavior inside and outside the synthetic jet actuator cavity, impacts of thermoviscous losses on capturing the acoustic response of the actuator, and viability of different modeling methods of diaphragms in computational simulations. The results capture the feedback from the fluid onto the diaphragm and highlight the need for careful acoustic modeling.

show abstract

“…Other fl ow-control LES papers (Jones and Wille, 1996;Kjellgren et al, 2000;Lesbros et al, 2006;Neumann and Wengle, 2001;Suponitsky et al, 2005) are not discussed here. All used the incompressible form of the equations, and all included either a Smagorinsky or dynamic Smagorinsky model.…”

Section: Numerical Considerationsmentioning

confidence: 99%