Linear stability of Landau jet: Non-parallel effects

R. Mullyadzhanov; N. Yavorsky; K. Oberleithner

doi:10.1088/1742-6596/1268/1/012050

Linear stability of Landau jet: Non-parallel effects

R. Mullyadzhanov, N. Yavorsky, K. Oberleithner

Результат исследования: Научные публикации в периодических изданиях › статья по материалам конференции › рецензирование

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Аннотация

We perform linear stability analysis of Landau jet using quasi-parallel approximation and self-similar approach. While the former detects only sinusoidal unstable modes, the latter also captures axisymmetric disturbances in agreement with previous results. The direct comparison of dispersion curves and eigenmode shapes for m = 1 and Re_D ≈ 56 indicates that low frequencies are poorly described within quasi-parallel approximation making this approach questionable for a laminar-turbulent transition model.

Язык оригинала	английский
Номер статьи	012050
Число страниц	6
Журнал	Journal of Physics: Conference Series
Том	1268
Номер выпуска	1
DOI	https://doi.org/10.1088/1742-6596/1268/1/012050
Состояние	Опубликовано - 16 июл 2019
Событие	All-Russian Conference and School for Young Scientists, devoted to 100th Anniversary of Academician L.V. Ovsiannikov on Mathematical Problems of Continuum Mechanics, MPCM 2019 - Novosibirsk, Российская Федерация Продолжительность: 13 мая 2019 → 17 мая 2019

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10.1088/1742-6596/1268/1/012050

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Linear stability of Landau jet : Non-parallel effects. / Mullyadzhanov, R.; Yavorsky, N.; Oberleithner, K.

В: Journal of Physics: Conference Series, Том 1268, № 1, 012050, 16.07.2019.

Результат исследования: Научные публикации в периодических изданиях › статья по материалам конференции › рецензирование

TY - JOUR

T1 - Linear stability of Landau jet

T2 - All-Russian Conference and School for Young Scientists, devoted to 100th Anniversary of Academician L.V. Ovsiannikov on Mathematical Problems of Continuum Mechanics, MPCM 2019

AU - Mullyadzhanov, R.

AU - Yavorsky, N.

AU - Oberleithner, K.

PY - 2019/7/16

Y1 - 2019/7/16

N2 - We perform linear stability analysis of Landau jet using quasi-parallel approximation and self-similar approach. While the former detects only sinusoidal unstable modes, the latter also captures axisymmetric disturbances in agreement with previous results. The direct comparison of dispersion curves and eigenmode shapes for m = 1 and ReD ≈ 56 indicates that low frequencies are poorly described within quasi-parallel approximation making this approach questionable for a laminar-turbulent transition model.

AB - We perform linear stability analysis of Landau jet using quasi-parallel approximation and self-similar approach. While the former detects only sinusoidal unstable modes, the latter also captures axisymmetric disturbances in agreement with previous results. The direct comparison of dispersion curves and eigenmode shapes for m = 1 and ReD ≈ 56 indicates that low frequencies are poorly described within quasi-parallel approximation making this approach questionable for a laminar-turbulent transition model.

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DO - 10.1088/1742-6596/1268/1/012050

M3 - Conference article

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

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Y2 - 13 May 2019 through 17 May 2019

ER -

Linear stability of Landau jet: Non-parallel effects

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