The time-resolved natural flow field of a fluidic oscillator

R Woszidlo, F Ostermann, CN Nayeri… - Experiments in fluids, 2015 - Springer
The internal and external flow field of a fluidic oscillator with two feedback channels are
examined experimentally within the incompressible flow regime. A scaled-up device with a …

Fluidic oscillators' applications, structures and mechanisms–a review

S Ghanami, M Farhadi - Challenges in Nano and Micro Scale …, 2019 - chal.usb.ac.ir
Enhancement of heat and mass transfer and decrease of energy dissipation are great
necessities of the evolution of fluid flow devices. Utilizing oscillatory or pulsatile fluid flow for …

Measurement of two-dimensional heat transfer and flow characteristics of an impinging sweeping jet

SH Kim, HD Kim, KC Kim - International Journal of Heat and Mass Transfer, 2019 - Elsevier
This study experimentally explores the two-dimensional heat transfer characteristics of an
impinging sweeping jet generated from a feedback–channel-type fluidic oscillator. The …

Experimental comparison between the flow field of two common fluidic oscillator designs

F Ostermann, R Woszidlo, C Nayeri… - 53rd AIAA aerospace …, 2015 - arc.aiaa.org
The time-resolved internal and external flow field of two common oscillator designs with
equal outlet diameters are acquired by employing PIV measurements and phase-averaging …

Comparison of sweeping jet actuators with different flow-control techniques for flow-separation control

M Koklu, LR Owens - AIAA Journal, 2017 - arc.aiaa.org
Flow-separation control on an adverse-pressure-gradient ramp model was investigated
using various flow-control methods in the NASA Langley Research Center's 15 in. wind …

Phase-averaging methods for the natural flowfield of a fluidic oscillator

F Ostermann, R Woszidlo, CN Nayeri, CO Paschereit - Aiaa Journal, 2015 - arc.aiaa.org
The presented study examines various methods for phase averaging the naturally oscillating
flowfield of a scaled-up fluidic oscillator. No external trigger is employed to control the …

Thermal pollution level reduction by sweeping jet-based enhanced heat dissipation: A numerical study with calibrated Generalized k-ω (GEKO) model

Z Li, Y Liu, W Zhou, X Wen, Y Liu - Applied Thermal Engineering, 2022 - Elsevier
Thermal pollution is commonly the damage to natural ecosystems caused by industrial water
discharge into the environment above ambient temperature. The highly efficiently dissipative …

Computational fluid dynamic analysis of fluidic actuator for active flow control applications

S Aram, YT Lee, H Shan, A Vargas - AIAA Journal, 2018 - arc.aiaa.org
A numerical study is conducted to explore the unsteady nature of fluidic oscillators, which
are responsible for generating sweeping jets for effective flow control of large-scale …

Sensitivity of a fluidic oscillator to modifications of feedback channel and mixing chamber geometry

AR Tajik, K Kara, V Parezanović - Experiments in Fluids, 2021 - Springer
This experimental study investigates the effects of internal geometry modifications on the
performance of a curved Sweeping Jet actuator. The modifications are applied to the …

Drag reduction on a rectangular bluff body with base flaps and fluidic oscillators

HJ Schmidt, R Woszidlo, CN Nayeri… - Experiments in Fluids, 2015 - Springer
The present paper investigates drag reduction on a rectangular bluff body by employing
base flaps and controlling flow separation with fluidic oscillators. Wind tunnel experiments …