TY  - JOUR
AU  - Najafi Khaboshan, Hasan
AU  - Yousefi, Elnaz
AU  - Svorcan, Jelena
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4193
AB  - Numerical analyses of turbulent boundary layer parameters and skin-friction drag reduction
on a flat plate under the effect of air micro-blowing with the use of the SST k−ω turbulence
model are performed. The macroscale characteristics of a huge number of microjets are simulated
by using a microporous wall model (MPWM) incorporated into ANSYS FLUENT by user-defined
functions. Numerical results obtained within the Mach number range M = 0.2–0.5 (Reynolds number Re = 2.88 · 10^6–7.20 · 10^6) confirm the experimental data of other researchers. Furthermore, a slight increase in the boundary layer thickness, displacement thickness, and momentum thickness, as well as a decrease in the velocity gradient and shear friction are well captured. In comparison to a simple flat plate, applying air micro-blowing reduces the skin-friction coefficient by 51% at the Mach number M = 0.4 and blowing fraction of 0.008. Additionally, the skin-friction coefficient decreases as the blowing fraction and Mach number increase.
PB  - Pleiades Publishing, Ltd.
T2  - Journal of Applied Mechanics and Technical Physics
T1  - Analysis of the turbulent boundary layer and skin-friction drag reduction of a flat plate by using the micro-blowing technique
EP  - 436
IS  - 3
SP  - 425
VL  - 63
DO  - 10.1134/S0021894422030075
ER  - 

@article{
author = "Najafi Khaboshan, Hasan and Yousefi, Elnaz and Svorcan, Jelena",
year = "2022",
abstract = "Numerical analyses of turbulent boundary layer parameters and skin-friction drag reduction
on a flat plate under the effect of air micro-blowing with the use of the SST k−ω turbulence
model are performed. The macroscale characteristics of a huge number of microjets are simulated
by using a microporous wall model (MPWM) incorporated into ANSYS FLUENT by user-defined
functions. Numerical results obtained within the Mach number range M = 0.2–0.5 (Reynolds number Re = 2.88 · 10^6–7.20 · 10^6) confirm the experimental data of other researchers. Furthermore, a slight increase in the boundary layer thickness, displacement thickness, and momentum thickness, as well as a decrease in the velocity gradient and shear friction are well captured. In comparison to a simple flat plate, applying air micro-blowing reduces the skin-friction coefficient by 51% at the Mach number M = 0.4 and blowing fraction of 0.008. Additionally, the skin-friction coefficient decreases as the blowing fraction and Mach number increase.",
publisher = "Pleiades Publishing, Ltd.",
journal = "Journal of Applied Mechanics and Technical Physics",
title = "Analysis of the turbulent boundary layer and skin-friction drag reduction of a flat plate by using the micro-blowing technique",
pages = "436-425",
number = "3",
volume = "63",
doi = "10.1134/S0021894422030075"
}

Najafi Khaboshan, H., Yousefi, E.,& Svorcan, J.. (2022). Analysis of the turbulent boundary layer and skin-friction drag reduction of a flat plate by using the micro-blowing technique. in Journal of Applied Mechanics and Technical Physics
Pleiades Publishing, Ltd.., 63(3), 425-436.
https://doi.org/10.1134/S0021894422030075

Najafi Khaboshan H, Yousefi E, Svorcan J. Analysis of the turbulent boundary layer and skin-friction drag reduction of a flat plate by using the micro-blowing technique. in Journal of Applied Mechanics and Technical Physics. 2022;63(3):425-436.
doi:10.1134/S0021894422030075 .

Najafi Khaboshan, Hasan, Yousefi, Elnaz, Svorcan, Jelena, "Analysis of the turbulent boundary layer and skin-friction drag reduction of a flat plate by using the micro-blowing technique" in Journal of Applied Mechanics and Technical Physics, 63, no. 3 (2022):425-436,
https://doi.org/10.1134/S0021894422030075 . .