Simulation of a High-Lift Configuration Embedded with Fluidic Actuators Using PowerFLOW Code

Vatsa, Veer N.; Casalino, Damiano; Lin, John C.; Appelbaum, Jason

doi:10.1260/1756-8250.6.4.147

Cited by 8 publications

(1 citation statement)

References 22 publications

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“…With respect to spacing, their results showed that increased spacing caused increased side force enhancement at a rudder deflection angle of 30°. Vatsa et al 21 computationally studied this same configuration with sweeping jets and found similar results to those obtained experimentally. Their work included cases at flight Reynolds numbers.…”

Section: Introductionsupporting

confidence: 68%

Performance Enhancement of an Airfoil Model with a Control Surface using Synthetic Jets

Monastero

Amitay

2016

8th AIAA Flow Control Conference

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Synthetic-jet-based active flow control for separation control over a vertical tail is an ongoing area of research, the goal of which is reducing the size of the vertical tail on commercial airplanes. Before placing the actuators on an airplane, a detailed understanding of the effect different jets and test parameters have on side force enhancement must be obtained. Previous work investigated the performance enhancement of 1/19 th scale and 1/9 th scale vertical tail models and showed that the side force could be augmented by as much as 34%. The authors found an unexpected relationship between jet spacing (and number of jets) and side force enhancement that did not agree between the two models, where, under specific conditions, increasing the spacing between actuators increased the side force on the larger 1/9 th scale model while decreasing it on the smaller 1/19 th scale model. To further understand the interactions among jets as spacing varied, a new model was designed and tested in the Rensselaer Polytechnic Institute (RPI) Subsonic Wind Tunnel. The model was designed such that it is capable of varying sweep angle, rudder characteristics (chord length and deflection), and various actuator parameters. The experiments discussed in this paper focus on the unswept case with the rudder at a moderate deflection angle of 20 o and the sensitivity of the side force produced by the unswept model to different parameters. The flow field around the new model was first characterized using particle image velocimetry and pressure measurements. The effect of synthetic jet flow control was found to significantly modify the pressure distribution globally around the model, which resulted in up to 17% improvement in the side force. The effect of sideslip angle and jet spacing were also studied and found to agree with the trends observed in previous work. The work discussed here is the foundation for continuing tests on a swept configuration of the model. These future tests will study how the addition of spanwise flow and variations in separation severity affect the performance trends as spacing is varied. Nomenclature= area-based momentum coefficient produced by a single jet c = total chord c r = rudder chord F + = non-dimensional actuation frequency n = number of active jets in the array Re c = chord-based Reynolds number S = model planform area

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Section: Introductionsupporting

confidence: 68%

Performance Enhancement of an Airfoil Model with a Control Surface using Synthetic Jets

Monastero

Amitay

2016

8th AIAA Flow Control Conference

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Conjugated heat transfer simulation of flow mechanism and heat transfer characteristic of sweeping jet impinging on leading edge in turbine cascade

Tu,

Chen,

2024

Applied Thermal Engineering

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Effects of combined sweeping jet actuator and winglet tip on aerodynamic performance in a turbine cascade

Chen

2022

Aerospace Science and Technology

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Simulation of a High-Lift Configuration Embedded with Fluidic Actuators Using PowerFLOW Code

Cited by 8 publications

References 22 publications

Performance Enhancement of an Airfoil Model with a Control Surface using Synthetic Jets

Performance Enhancement of an Airfoil Model with a Control Surface using Synthetic Jets

Conjugated heat transfer simulation of flow mechanism and heat transfer characteristic of sweeping jet impinging on leading edge in turbine cascade

Effects of combined sweeping jet actuator and winglet tip on aerodynamic performance in a turbine cascade

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