Application of synthetic jet arrays for flow separation control on a circular “hump” model

M Ja'fari, AJ Jaworski, A Rona - Experimental Thermal and Fluid Science, 2022 - Elsevier
This research investigates the effectiveness of a spanwise array of synthetic jet actuator
(SJA) for the control of boundary layer separation over a circular “hump” model. The …

Synchronization and flow characteristics of the opposed facing oscillator pair in back-to-back configuration

ET Sundström, MN Tomac - Flow, Turbulence and Combustion, 2020 - Springer
This study quantifies the flow characteristics of an opposed facing fluidic oscillator pair that
was arranged in a back-to-back configuration. The objective was to obtain two synchronized …

Multifidelity computing for coupling full and reduced order models

SE Ahmed, O San, K Kara, R Younis, A Rasheed - Plos one, 2021 - journals.plos.org
Hybrid physics-machine learning models are increasingly being used in simulations of
transport processes. Many complex multiphysics systems relevant to scientific and …

Flow and frequency characterization of the synchronized stacked sweeping jets

MN Tomac, MA Hossain - AIAA Journal, 2021 - arc.aiaa.org
This work characterizes a pair of feedback-type fluidic oscillators in a stacked arrangement.
Quasi-rectangular synchronization channels were used to connect both feedback channels …

Fluidic oscillator with active phase control

CJ Nicholls, M Bacic - AIAA Journal, 2023 - arc.aiaa.org
This paper demonstrates the closed-loop control of the frequency and phase of a fluidic
oscillator using acoustic excitation. It is shown experimentally that the use of acoustic …

[HTML][HTML] Numerical study of flow separation control over a circular hump using synthetic jet actuators

M Ja'fari, AJ Jaworski, A Rona - AIP Advances, 2022 - pubs.aip.org
This study deals with the wall resolved Unsteady Reynolds-Averaged Navier–Stokes
(URANS) simulation of boundary layer flow separation over a circular hump model and its …

Novel operating mode of a fluidic oscillator

CJ Nicholls, BMT Tang, J Turner… - Journal of Fluids …, 2022 - asmedigitalcollection.asme.org
Fluidic oscillators show promise for use in aerodynamic flow control applications, with many
studies reporting oscillation frequencies in the 1–10 kHz range. Spyropoulos,“A Sonic …

[HTML][HTML] Computational and experimental study of the synchronization strategies of two pulsing jet fluidic oscillators

S Wang, A Batikh, L Baldas, A Kourta… - Sensors and Actuators A …, 2024 - Elsevier
Fluidic oscillators are interesting actuators for flow control purposes as they produce
unsteady jets without any moving part. Flow separation control in a large scale, for instance …

Connection Between Flow Structure and Separation Control for Various Fluidic Oscillator Spacings

C Otto, JC Little, R Woszidlo - AIAA Journal, 2022 - arc.aiaa.org
The influence of actuator spacing on separation control using fluidic oscillators is
experimentally investigated on a wall-mounted hump. Momentum inputs up to C μ= 2.5 …

[PDF][PDF] A Coupled Numerical/Experimental Study of Flow Separation Suppression over a Curved Surface Using Fluidic Oscillators

NK Koukpaizan, CJ Peterson, A Glezer… - Proceedings of the 45th …, 2019 - dspace-erf.nlr.nl
Fluidic oscillators, devices that generate sweeping jets when supplied with a pressurized
fluid, have been used in a variety of flow control applications. The present investigations …