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Differences between the motion of a helical vortex and the movement of fluid particles along its axis. / Okulov, V. L.; Gesheva, E. S.; Kuibin, P. A. et al.

In: Thermophysics and Aeromechanics, Vol. 27, No. 4, 07.2020, p. 473-480.

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

Harvard

Okulov, VL, Gesheva, ES, Kuibin, PA, Shtork, SI, Sørensen, J, Wood, D & Alekseenko, SV 2020, 'Differences between the motion of a helical vortex and the movement of fluid particles along its axis', Thermophysics and Aeromechanics, vol. 27, no. 4, pp. 473-480. https://doi.org/10.1134/S0869864320040010

APA

Okulov, V. L., Gesheva, E. S., Kuibin, P. A., Shtork, S. I., Sørensen, J., Wood, D., & Alekseenko, S. V. (2020). Differences between the motion of a helical vortex and the movement of fluid particles along its axis. Thermophysics and Aeromechanics, 27(4), 473-480. https://doi.org/10.1134/S0869864320040010

Vancouver

Okulov VL, Gesheva ES, Kuibin PA, Shtork SI, Sørensen J, Wood D et al. Differences between the motion of a helical vortex and the movement of fluid particles along its axis. Thermophysics and Aeromechanics. 2020 Jul;27(4):473-480. doi: 10.1134/S0869864320040010

Author

Okulov, V. L. ; Gesheva, E. S. ; Kuibin, P. A. et al. / Differences between the motion of a helical vortex and the movement of fluid particles along its axis. In: Thermophysics and Aeromechanics. 2020 ; Vol. 27, No. 4. pp. 473-480.

BibTeX

@article{e4b40d4c3c854538bc13a1073d76ed9c,
title = "Differences between the motion of a helical vortex and the movement of fluid particles along its axis",
abstract = "The motion of a helical vortex and the movement of the fluid particles along its axis are analyzed. The same form of the helical axis of the vortex and the trajectory of the particles sometimes leads to a false assumption of equality of these two different motions. The correct identification of both motions, however, is essential when considering the helical vortices in the wakes of rotors, or the displacement of the core of helicoidal tornado, etc. Only the same helical shape is the vortex axis and the streamline of the fluid particles can mistakenly merge these two different motions as the identical travel. We describe an experiment that clearly separates these two motions for the case of a stationary helical vortex, along the axis of which the fluid particles intensively move. The result shows that the absolute velocity of fluid particles does not coincide with the motion of the helical vortex as a whole.",
keywords = "helical vortex, vortex dynamics",
author = "Okulov, {V. L.} and Gesheva, {E. S.} and Kuibin, {P. A.} and Shtork, {S. I.} and J. S{\o}rensen and D. Wood and Alekseenko, {S. V.}",
note = "The work, including measurements of velocity fields and theoretical analysis, was carried out with the state support of scientific research, conducted under the guidance of leading scientists in Russian universities (Agreement No. 075-15-2019-1923). The visualization experiment was performed under the state contract with IT SB RAS (AAAA-A17-117030910025-7).",
year = "2020",
month = jul,
doi = "10.1134/S0869864320040010",
language = "English",
volume = "27",
pages = "473--480",
journal = "Thermophysics and Aeromechanics",
issn = "0869-8643",
publisher = "PLEIADES PUBLISHING INC",
number = "4",

}

RIS

TY - JOUR

T1 - Differences between the motion of a helical vortex and the movement of fluid particles along its axis

AU - Okulov, V. L.

AU - Gesheva, E. S.

AU - Kuibin, P. A.

AU - Shtork, S. I.

AU - Sørensen, J.

AU - Wood, D.

AU - Alekseenko, S. V.

N1 - The work, including measurements of velocity fields and theoretical analysis, was carried out with the state support of scientific research, conducted under the guidance of leading scientists in Russian universities (Agreement No. 075-15-2019-1923). The visualization experiment was performed under the state contract with IT SB RAS (AAAA-A17-117030910025-7).

PY - 2020/7

Y1 - 2020/7

N2 - The motion of a helical vortex and the movement of the fluid particles along its axis are analyzed. The same form of the helical axis of the vortex and the trajectory of the particles sometimes leads to a false assumption of equality of these two different motions. The correct identification of both motions, however, is essential when considering the helical vortices in the wakes of rotors, or the displacement of the core of helicoidal tornado, etc. Only the same helical shape is the vortex axis and the streamline of the fluid particles can mistakenly merge these two different motions as the identical travel. We describe an experiment that clearly separates these two motions for the case of a stationary helical vortex, along the axis of which the fluid particles intensively move. The result shows that the absolute velocity of fluid particles does not coincide with the motion of the helical vortex as a whole.

AB - The motion of a helical vortex and the movement of the fluid particles along its axis are analyzed. The same form of the helical axis of the vortex and the trajectory of the particles sometimes leads to a false assumption of equality of these two different motions. The correct identification of both motions, however, is essential when considering the helical vortices in the wakes of rotors, or the displacement of the core of helicoidal tornado, etc. Only the same helical shape is the vortex axis and the streamline of the fluid particles can mistakenly merge these two different motions as the identical travel. We describe an experiment that clearly separates these two motions for the case of a stationary helical vortex, along the axis of which the fluid particles intensively move. The result shows that the absolute velocity of fluid particles does not coincide with the motion of the helical vortex as a whole.

KW - helical vortex

KW - vortex dynamics

UR - http://www.scopus.com/inward/record.url?scp=85098451392&partnerID=8YFLogxK

U2 - 10.1134/S0869864320040010

DO - 10.1134/S0869864320040010

M3 - Article

AN - SCOPUS:85098451392

VL - 27

SP - 473

EP - 480

JO - Thermophysics and Aeromechanics

JF - Thermophysics and Aeromechanics

SN - 0869-8643

IS - 4

ER -

ID: 27332412