Fundamental properties of fluidic oscillators for flow control applications

R Woszidlo, F Ostermann, HJ Schmidt - AIAA Journal, 2019 - arc.aiaa.org
The presented work provides a technical summary of the fundamental time-resolved
properties of a spatially oscillating jet emitted by a fluidic oscillator. The discussion focuses …

Flow structure and heat transfer of a sweeping jet impinging on a flat wall

T Park, K Kara, D Kim - International Journal of Heat and Mass Transfer, 2018 - Elsevier
While an impinging jet has been widely investigated because of its remarkable convective
heat transfer performance, the impingement of a sweeping jet which undergoes periodic …

Flow-separation control using sweeping jet actuator

K Kara, D Kim, PJ Morris - AIAA journal, 2018 - arc.aiaa.org
IMPROVED aerodynamic designs and new aerodynamic technologies will play a vital role in
improving the nextgeneration aircraft's performance and contribute strongly to the product …

The interaction between a spatially oscillating jet emitted by a fluidic oscillator and a cross-flow

F Ostermann, R Woszidlo, CN Nayeri… - Journal of Fluid …, 2019 - cambridge.org
This experimental study investigates the fundamental flow field of a spatially oscillating jet
emitted by a fluidic oscillator into an attached cross-flow. Dominant flow structures, such as …

[HTML][HTML] Heat transfer enhancement on a concave surface using sweeping impinging jets: Comparison of vortex-based and conventional oscillators

M Rezaei, M Nili-Ahmadabadi, M Tavakoli… - Case Studies in Thermal …, 2024 - Elsevier
While the impinging sweeping jet generated by a conventional fluidic oscillator has been
extensively investigated for its remarkable convective heat transfer performance, the cooling …

Leading-edge active flow control enabled by curved fluidic oscillators

A Spens, AP Pisano, JP Bons - AIAA Journal, 2023 - arc.aiaa.org
A new design of fluidic oscillator, in which the oscillator is curved along its primary flow
direction, allows for a sweeping jet to be placed near the leading edge of a wing as an active …

Phase-synchronized fluidic oscillator pair

MN Tomac, JW Gregory - AIAA Journal, 2019 - arc.aiaa.org
The relative phase of oscillating jets from a pair of fluidic oscillators was synchronized in this
work. The means for this synchronization was mutual interaction through a shared feedback …

Aspect ratio and combined installation in fluidic oscillator-crossflow interactions

OP Ayeni, B Cleton - Physics of Fluids, 2022 - pubs.aip.org
This paper describes a computational study of fluidic oscillator-crossflow interactions. Fluidic
oscillators are high potential active flow control devices, which offer promise for cooling and …

Fluid-structure interaction of a sweeping impingement jet for cooling hot flat target

AA Hassan, MA Ismael - International Journal of Thermal Sciences, 2023 - Elsevier
Normal impingement jets remove heat from a hot target locally and cause non-uniform
temperature due to the limited covered distance on the target. The current numerical study …

Effects of installation conditions of fluidic oscillators on control of flow separation

SH Kim, KY Kim - AIAA Journal, 2019 - arc.aiaa.org
The installation conditions of fluidic oscillators embedded in a hump surface were
numerically investigated to improve the separation control of the flow over the hump …