Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions

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Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions. / Sorokin, M. I.; Kushnarev, D. A.; Tokarev, M. P. et al.

In: Thermophysics and Aeromechanics, Vol. 32, No. 2, 03.2025, p. 327-332.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{91600ee4c3f6484fae4daa05365f986d,

title = "Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions",

abstract = "Optical diagnostics of the three-dimensional structure of large eddies in the near zone of a turbulent jet (at Re = 5000) exhausting from a round nozzle is performed in the case with coaxial periodic disturbances of the flow through annular slots at the nozzle edge and through holes in the internal surface of the nozzle in the transverse direction. The external action leads to rapid turbulization of the flow near the nozzle edge due to generation of large extended toroidal vortices in the case of coaxial disturbances and due to significant reconstruction of the flow with rapid disintegration of the jet core in the case of transverse disturbances.",

keywords = "PIV (Particle Image Velocimetry), POD (Proper Orthogonal Decomposition), active control, free jet, large eddies, PIV-МЕТОД (PARTICLE IMAGE VELOCIMETRY), POD-МЕТОД (PROPER ORTHOGONAL DECOMPOSITION), КРУПНЫЕ ВИХРИ, СВОБОДНАЯ СТРУЯ, АКТИВНОЕ УПРАВЛЕНИЕ",

author = "Sorokin, {M. I.} and Kushnarev, {D. A.} and Tokarev, {M. P.} and Dulin, {V. M.}",

note = "Sorokin, M.I., Kushnarev, D.A., Tokarev, M.P. et al. Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions. Thermophys. Aeromech. 32, 327–332 (2025). https://doi.org/10.1134/S0869864325020076 This study was supported by the Russian Science Foundation (Grant No. 23-79-33008).",

year = "2025",

month = mar,

doi = "10.1134/S0869864325020076",

language = "English",

volume = "32",

pages = "327--332",

journal = "Thermophysics and Aeromechanics",

issn = "0869-8643",

publisher = "Pleiades Publishing",

number = "2",

}

RIS

TY - JOUR

T1 - Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions

AU - Sorokin, M. I.

AU - Kushnarev, D. A.

AU - Tokarev, M. P.

AU - Dulin, V. M.

N1 - Sorokin, M.I., Kushnarev, D.A., Tokarev, M.P. et al. Investigation of the dynamics of large eddies in the near zone of an axisymmetric free jet in the case with local pulsed injection in the coaxial and transverse directions. Thermophys. Aeromech. 32, 327–332 (2025). https://doi.org/10.1134/S0869864325020076 This study was supported by the Russian Science Foundation (Grant No. 23-79-33008).

PY - 2025/3

Y1 - 2025/3

N2 - Optical diagnostics of the three-dimensional structure of large eddies in the near zone of a turbulent jet (at Re = 5000) exhausting from a round nozzle is performed in the case with coaxial periodic disturbances of the flow through annular slots at the nozzle edge and through holes in the internal surface of the nozzle in the transverse direction. The external action leads to rapid turbulization of the flow near the nozzle edge due to generation of large extended toroidal vortices in the case of coaxial disturbances and due to significant reconstruction of the flow with rapid disintegration of the jet core in the case of transverse disturbances.

AB - Optical diagnostics of the three-dimensional structure of large eddies in the near zone of a turbulent jet (at Re = 5000) exhausting from a round nozzle is performed in the case with coaxial periodic disturbances of the flow through annular slots at the nozzle edge and through holes in the internal surface of the nozzle in the transverse direction. The external action leads to rapid turbulization of the flow near the nozzle edge due to generation of large extended toroidal vortices in the case of coaxial disturbances and due to significant reconstruction of the flow with rapid disintegration of the jet core in the case of transverse disturbances.

KW - PIV (Particle Image Velocimetry)

KW - POD (Proper Orthogonal Decomposition)

KW - active control

KW - free jet

KW - large eddies

KW - PIV-МЕТОД (PARTICLE IMAGE VELOCIMETRY)

KW - POD-МЕТОД (PROPER ORTHOGONAL DECOMPOSITION)

KW - КРУПНЫЕ ВИХРИ

KW - СВОБОДНАЯ СТРУЯ

KW - АКТИВНОЕ УПРАВЛЕНИЕ

UR - https://www.scopus.com/pages/publications/105029779232

UR - https://www.elibrary.ru/item.asp?id=82745265

UR - https://www.mendeley.com/catalogue/72c68cf3-dc02-3811-a8eb-887a58bedef6/

U2 - 10.1134/S0869864325020076

DO - 10.1134/S0869864325020076

M3 - Article

VL - 32

SP - 327

EP - 332

JO - Thermophysics and Aeromechanics

JF - Thermophysics and Aeromechanics

SN - 0869-8643

IS - 2

ER -

ID: 75452454